diff --git a/src/main/java/com/ai/da/common/config/MyTaskScheduler.java b/src/main/java/com/ai/da/common/config/MyTaskScheduler.java
index 433bdd11..be6bd63b 100644
--- a/src/main/java/com/ai/da/common/config/MyTaskScheduler.java
+++ b/src/main/java/com/ai/da/common/config/MyTaskScheduler.java
@@ -308,7 +308,7 @@ public class MyTaskScheduler {
     private MinioUtil minioUtil;
     @Resource
     private UserLikeService userLikeService;
-    public void clearMinio() {
+   /* public void clearMinio() {
         List<CollectionElement> collectionElements = collectionElementMapper.selectDeleteList();
         for (CollectionElement collectionElement : collectionElements) {
             String url = collectionElement.getUrl();
@@ -472,7 +472,7 @@ public class MyTaskScheduler {
 //        }
 //        String preSignedUrl = minioUtil.getPreSignedUrl("aida-clothing/image/image_1698374859.3031476.png", 10000);
 //        System.out.println(preSignedUrl);
-    }
+    }*/
 
     @Resource
     private AttributeRetrievalMapper attributeRetrievalMapper;
diff --git a/src/main/java/com/ai/da/common/utils/SendEmailUtil.java b/src/main/java/com/ai/da/common/utils/SendEmailUtil.java
index 6712ac2c..f984fc83 100644
--- a/src/main/java/com/ai/da/common/utils/SendEmailUtil.java
+++ b/src/main/java/com/ai/da/common/utils/SendEmailUtil.java
@@ -883,8 +883,8 @@ public class SendEmailUtil {
 
             if (!type.equals("cancel") && !type.equals("fail_new")) {
                 // 返回的resp是一个SendEmailResponse的实例，与请求对象对应
-//                SendEmailResponse respUser = client.SendEmail(user);
-                log.info("邮件主题：{}，发送结果toUser###{}, email:{}", user.getSubject(), /*SendEmailResponse.toJsonString(respUser)*/null, receiverAddress);
+                SendEmailResponse respUser = client.SendEmail(user);
+                log.info("邮件主题：{}，发送结果toUser###{}, email:{}", user.getSubject(), SendEmailResponse.toJsonString(respUser), receiverAddress);
             }
             if (!type.startsWith("reminder")) {
                 SendEmailResponse respMerchant = client.SendEmail(merchant);
diff --git a/src/main/java/com/ai/da/controller/SubscriptionPlanController.java b/src/main/java/com/ai/da/controller/SubscriptionPlanController.java
index cf4051de..e071b830 100644
--- a/src/main/java/com/ai/da/controller/SubscriptionPlanController.java
+++ b/src/main/java/com/ai/da/controller/SubscriptionPlanController.java
@@ -1,6 +1,7 @@
 package com.ai.da.controller;
 
 import com.ai.da.common.response.Response;
+import com.ai.da.mapper.primary.entity.SubscriptionPlan;
 import com.ai.da.model.dto.SubscriptionPlanDTO;
 import com.ai.da.model.dto.SubscriptionPlanPageQuery;
 import com.ai.da.model.dto.UpdateSubscriptionPlanDTO;
@@ -14,6 +15,8 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 @Tag(name = "订阅计划模块")
 @Slf4j
 @RequiredArgsConstructor
@@ -38,6 +41,12 @@ public class SubscriptionPlanController {
     }
 
     @Operation(summary = "搜索订阅计划")
+    @PostMapping("/searchByOrganizationIdAndStatus")
+    public Response<List<SubscriptionPlan>> searchByOrganizationIdAndStatus(@Valid @RequestBody SubscriptionPlanPageQuery subscriptionPlanPageQuery) {
+        return Response.success(subscriptionPlanService.searchByOrganizationIdAndStatus(subscriptionPlanPageQuery));
+    }
+
+    @Operation(summary = "分页搜索订阅计划")
     @PostMapping("/searchByPage")
     public Response<IPage<SubscriptionPlanVO>> searchByPage(@Valid @RequestBody SubscriptionPlanPageQuery subscriptionPlanPageQuery) {
         IPage<SubscriptionPlanVO> subscriptionPlanVOIPage = subscriptionPlanService.searchByPage(subscriptionPlanPageQuery);
@@ -53,8 +62,15 @@ public class SubscriptionPlanController {
 
     @Operation(summary = "管理员切换订阅计划")
     @GetMapping("/switchSubscriptionPlan")
-    public Response<String> switchSubscriptionPlan(@RequestParam Long subscriptionPlanId, @RequestParam Long adminAccId) {
-        subscriptionPlanService.switchSubscriptionPlan(subscriptionPlanId, adminAccId);
+    public Response<String> switchSubscriptionPlan(@RequestParam Long targetSubscriptionPlanId, @RequestParam(required = false) Long adminAccId) {
+        subscriptionPlanService.switchSubscriptionPlan(targetSubscriptionPlanId, adminAccId);
+        return Response.success();
+    }
+
+    @Operation(summary = "子账号切换订阅计划")
+    @GetMapping("/switchSubAccSubscriptionPlan")
+    public Response<String> switchSubAccSubscriptionPlan(@RequestParam Long targetSubscriptionPlanId, @RequestParam Long subAccId) {
+        subscriptionPlanService.switchSubAccSubscriptionPlan(targetSubscriptionPlanId, subAccId);
         return Response.success();
     }
 
diff --git a/src/main/java/com/ai/da/mapper/primary/SubscriptionPlanMapper.java b/src/main/java/com/ai/da/mapper/primary/SubscriptionPlanMapper.java
index 05c490e8..2e9df012 100644
--- a/src/main/java/com/ai/da/mapper/primary/SubscriptionPlanMapper.java
+++ b/src/main/java/com/ai/da/mapper/primary/SubscriptionPlanMapper.java
@@ -1,7 +1,24 @@
 package com.ai.da.mapper.primary;
 
 import com.ai.da.mapper.primary.entity.SubscriptionPlan;
+import com.ai.da.model.vo.SubscriptionPlanVO;
+import com.baomidou.mybatisplus.core.conditions.Wrapper;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baomidou.mybatisplus.core.toolkit.Constants;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
 
 public interface SubscriptionPlanMapper extends BaseMapper<SubscriptionPlan> {
+
+    /**
+     * 关联查询订阅计划信息（包含管理员邮箱）- 分页
+     */
+    @Select("SELECT sp.*, a.user_email as adminAccEmail, a.user_name as adminAccName " +
+            "FROM t_subscription_plan sp " +
+            "LEFT JOIN t_account a ON sp.admin_acc_id = a.id " +
+            "WHERE sp.is_deleted = 0 " +
+            "${ew.customSqlSegment}")
+    Page<SubscriptionPlanVO> selectWithEmailPage(Page<SubscriptionPlanVO> page,
+                                                 @Param(Constants.WRAPPER) Wrapper<?> wrapper);
 }
diff --git a/src/main/java/com/ai/da/model/dto/SubAccountPageDTO.java b/src/main/java/com/ai/da/model/dto/SubAccountPageDTO.java
index 8a0f5762..aac4c227 100644
--- a/src/main/java/com/ai/da/model/dto/SubAccountPageDTO.java
+++ b/src/main/java/com/ai/da/model/dto/SubAccountPageDTO.java
@@ -14,4 +14,6 @@ public class SubAccountPageDTO extends PageQueryBaseVo {
     private List<String> email;
 
     private List<String> userName;
+
+    private Long subscriptionPlanId;
 }
diff --git a/src/main/java/com/ai/da/model/dto/SubscriptionPlanDTO.java b/src/main/java/com/ai/da/model/dto/SubscriptionPlanDTO.java
index 36fe5f0b..aab98e92 100644
--- a/src/main/java/com/ai/da/model/dto/SubscriptionPlanDTO.java
+++ b/src/main/java/com/ai/da/model/dto/SubscriptionPlanDTO.java
@@ -2,7 +2,9 @@ package com.ai.da.model.dto;
 
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.Min;
 import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Positive;
 import lombok.Data;
 
 import java.math.BigDecimal;
@@ -13,18 +15,22 @@ public class SubscriptionPlanDTO {
 
     @Schema(description = "组织id")
     @NotNull(message = "Please select an organizationId.")
+    @Positive(message = "组织ID必须大于0")
     private Long organizationId;
 
     @Schema(description = "当前订阅开始时间")
     @NotNull(message = "Please set a subscription start time.")
+    @Min(value = 0, message = "开始时间不能小于0")
     private Long currentPeriodStart;
 
     @Schema(description = "当前订阅结束时间")
     @NotNull(message = "Please set a subscription end time.")
+    @Min(value = 0, message = "结束时间不能小于0")
     private Long currentPeriodEnd;
 
     @Schema(description = "当前订阅总的子账号数量")
     @NotNull(message = "Please set the sub-account number.")
+    @Min(value = 0, message = "子账号数量不能小于0")
     private Integer accountNum;
 
     @Schema(description = "当前订阅可用积分上限")
@@ -33,6 +39,10 @@ public class SubscriptionPlanDTO {
 
     @Schema(description = "管理员账户id")
     @NotNull(message = "Please assign an administrator account.")
+    @Positive(message = "管理员账号ID必须大于0")
     private Long adminAccId;
 
+    @Schema(description = "订阅计划命名")
+    private String name;
+
 }
diff --git a/src/main/java/com/ai/da/model/dto/UpdateSubscriptionPlanDTO.java b/src/main/java/com/ai/da/model/dto/UpdateSubscriptionPlanDTO.java
index bf5f53cd..b5611e51 100644
--- a/src/main/java/com/ai/da/model/dto/UpdateSubscriptionPlanDTO.java
+++ b/src/main/java/com/ai/da/model/dto/UpdateSubscriptionPlanDTO.java
@@ -29,4 +29,7 @@ public class UpdateSubscriptionPlanDTO {
     @Schema(description = "管理员账户id")
     private Long adminAccId;
 
+    @ApiModelProperty("订阅重命名")
+    private String name;
+
 }
diff --git a/src/main/java/com/ai/da/model/vo/SubscriptionPlanVO.java b/src/main/java/com/ai/da/model/vo/SubscriptionPlanVO.java
index 03ed784c..99d39d3f 100644
--- a/src/main/java/com/ai/da/model/vo/SubscriptionPlanVO.java
+++ b/src/main/java/com/ai/da/model/vo/SubscriptionPlanVO.java
@@ -30,8 +30,16 @@ public class SubscriptionPlanVO {
     @Schema(description = "管理员账户id")
     private Long adminAccId;
 
+    @Schema(description = "管理员账户邮箱")
+    private String adminAccEmail;
+
     @Schema(description = "创建时间")
     private LocalDateTime createTime;
 
+    @Schema(description = "状态")
+    private String status;
+
+    @Schema(description = "命名")
+    private String name;
 
 }
diff --git a/src/main/java/com/ai/da/service/SubscriptionPlanService.java b/src/main/java/com/ai/da/service/SubscriptionPlanService.java
index c41fe067..67affc27 100644
--- a/src/main/java/com/ai/da/service/SubscriptionPlanService.java
+++ b/src/main/java/com/ai/da/service/SubscriptionPlanService.java
@@ -8,18 +8,24 @@ import com.ai.da.model.vo.SubscriptionPlanVO;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.service.IService;
 
+import java.util.List;
+
 public interface SubscriptionPlanService extends IService<SubscriptionPlan> {
 
     void createPlan(SubscriptionPlanDTO subscriptionPlanDTO);
 
     void updatePlan(UpdateSubscriptionPlanDTO updateDTO);
 
+    List<SubscriptionPlan> searchByOrganizationIdAndStatus(SubscriptionPlanPageQuery subscriptionPlanPageQuery);
+
     IPage<SubscriptionPlanVO> searchByPage(SubscriptionPlanPageQuery subscriptionPlanPageQuery);
 
     void deletePlan(Long id);
 
     void switchSubscriptionPlan(Long subscriptionPlanId, Long adminAccId);
 
+    void switchSubAccSubscriptionPlan(Long subscriptionPlanId, Long subAccId);
+
     void activeSubscriptionPlan();
 
     void expireSubscription();
diff --git a/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java b/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java
index ee9515b1..85e931bf 100644
--- a/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java
@@ -2443,7 +2443,8 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
     @Transactional(rollbackFor = Exception.class)
     public Boolean createSubAccount(AddSubAccountDTO addSubAccountDTO, Account adminAcc, int subUserRole) {
         QueryWrapper<Account> qw = new QueryWrapper<>();
-        qw.lambda().eq(Account::getOrganizationId, adminAcc.getOrganizationId());
+        qw.lambda().eq(Account::getOrganizationId, adminAcc.getOrganizationId())
+                .eq(Account::getSubscriptionPlanId, adminAcc.getSubscriptionPlanId());
         List<Account> accounts = accountMapper.selectList(qw);
 
         // 校验子账号总数是否达上限
@@ -2493,6 +2494,7 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
 
             subAccount.setSystemUser(subUserRole);
             subAccount.setOrganizationId(adminAcc.getOrganizationId());
+            subAccount.setOrganizationName(adminAcc.getOrganizationName());
             subAccount.setParentId(adminAcc.getId());
             subAccount.setSubscriptionPlanId(adminAcc.getSubscriptionPlanId());
             if (Objects.nonNull(addSubAccountDTO.getCreditsUsageLimit())) {
@@ -2557,7 +2559,7 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
             subAccount.setIsTrial(0);
             subAccount.setIsBeginner(1);
             subAccount.setParentId(adminAcc.getId());
-//            subAccount.setOrganizationName(adminAcc.getOrganizationName());
+            subAccount.setOrganizationName(adminAcc.getOrganizationName());
             subAccount.setOrganizationId(adminAcc.getOrganizationId());
             subAccount.setSubscriptionPlanId(adminAcc.getSubscriptionPlanId());
             accountMapper.insert(subAccount);
@@ -2732,7 +2734,9 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
         for (Long id : addSubAccountDTO.getDeleteIdList()) {
             Account account = baseMapper.selectById(id);
             if (Objects.nonNull(account.getParentId()) && account.getParentId().equals(adminAccId)) {
-                BigDecimal unusedCredits = account.getCreditsUsageLimit().subtract(Objects.isNull(account.getCreditsUsage()) ? BigDecimal.ZERO : account.getCreditsUsage());
+                BigDecimal unusedCredits =
+                        Objects.requireNonNullElse(account.getCreditsUsageLimit(), BigDecimal.ZERO)
+                                .subtract(Objects.requireNonNullElse(account.getCreditsUsage(), BigDecimal.ZERO));
                 BigDecimal finalCredits = calculateFinalCredits(account, unusedCredits);
 
                 int userRole = determineUserRole(account.getId());
@@ -2805,7 +2809,7 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
         AuthPrincipalVo authPrincipalVo = UserContext.getUserHolder();
         Account account = accountMapper.selectById(authPrincipalVo);
         QueryWrapper<Account> qw = new QueryWrapper<>();
-        qw.lambda().ne(Account::getId, account.getId());
+        qw.lambda().ne(Account::getId, account.getId()).ne(Account::getSystemUser, 7);
         qw.lambda().eq(Account::getOrganizationId, account.getOrganizationId());
         if (StringUtils.isNotBlank(subAccountPageDTO.getStartTime())) {
             qw.lambda().ge(Account::getCreateDate, subAccountPageDTO.getStartTime());
@@ -2823,6 +2827,9 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
         } else if (subAccountPageDTO.getUserName() != null && subAccountPageDTO.getUserName().size() > 1) {
             qw.lambda().in(Account::getUserName, subAccountPageDTO.getUserName());
         }
+        if (Objects.nonNull(subAccountPageDTO.getSubscriptionPlanId())) {
+            qw.lambda().eq(Account::getSubscriptionPlanId, subAccountPageDTO.getSubscriptionPlanId());
+        }
 
         // 执行分页查询
         IPage<Account> page = accountMapper.selectPage(new Page<>(subAccountPageDTO.getPage(), subAccountPageDTO.getSize()), qw);
diff --git a/src/main/java/com/ai/da/service/impl/SubscriptionPlanServiceImpl.java b/src/main/java/com/ai/da/service/impl/SubscriptionPlanServiceImpl.java
index 020510cd..68748bd8 100644
--- a/src/main/java/com/ai/da/service/impl/SubscriptionPlanServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/SubscriptionPlanServiceImpl.java
@@ -11,10 +11,12 @@ import com.ai.da.mapper.primary.SubscriptionPlanMapper;
 import com.ai.da.mapper.primary.entity.Account;
 import com.ai.da.mapper.primary.entity.Organization;
 import com.ai.da.mapper.primary.entity.SubscriptionPlan;
+import com.ai.da.model.dto.AddSubAccountDTO;
 import com.ai.da.model.dto.SubscriptionPlanDTO;
 import com.ai.da.model.dto.SubscriptionPlanPageQuery;
 import com.ai.da.model.dto.UpdateSubscriptionPlanDTO;
 import com.ai.da.model.vo.SubscriptionPlanVO;
+import com.ai.da.service.AccountService;
 import com.ai.da.service.SubscriptionPlanService;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
@@ -22,7 +24,6 @@ import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-import com.google.common.base.Function;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
@@ -36,6 +37,7 @@ import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
+import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
 
@@ -46,6 +48,8 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
 
     private final AccountMapper accountMapper;
 
+    private final AccountService accountService;
+
     private final OrganizationMapper organizationMapper;
 
     private final RedisUtil redisUtil;
@@ -53,9 +57,14 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
     // 创建
     @Override
     public void createPlan(SubscriptionPlanDTO subscriptionPlanDTO) {
+        // 参数校验
+        validateCreatePlanParams(subscriptionPlanDTO);
+
         SubscriptionPlan subscriptionPlan = CopyUtil.copyObject(subscriptionPlanDTO, SubscriptionPlan.class);
         subscriptionPlan.setStatus(SubscriptionPlan.SubscriptionStatus.PENDING.name());
-        subscriptionPlan.setName("DEFAULT_NAME");
+        if (Objects.isNull(subscriptionPlan.getName())) {
+            subscriptionPlan.setName("DEFAULT_NAME");
+        }
         subscriptionPlan.setCreditUsage(BigDecimal.ZERO);
         subscriptionPlan.setCreateTime(LocalDateTime.now());
         if (Objects.isNull(subscriptionPlanDTO.getCreditLimit())) {
@@ -65,6 +74,25 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
         baseMapper.insert(subscriptionPlan);
     }
 
+    private void validateCreatePlanParams(SubscriptionPlanDTO subscriptionPlanDTO) {
+        // 校验组织是否存在
+        Organization organization = organizationMapper.selectById(subscriptionPlanDTO.getOrganizationId());
+        if (Objects.isNull(organization)) {
+            throw new BusinessException("unknown.organization");
+        }
+
+        // 校验结束时间是否大于开始时间
+        if (subscriptionPlanDTO.getCurrentPeriodEnd() <= subscriptionPlanDTO.getCurrentPeriodStart()) {
+            throw new BusinessException("end.time.must.be.later.than.the.start.time");
+        }
+
+        // 校验管理员账号id是否存在
+        Account account = accountMapper.selectById(subscriptionPlanDTO.getAdminAccId());
+        if (Objects.isNull(account)) {
+            throw new BusinessException("unknown.administrator.user");
+        }
+    }
+
     // 更新 到期时间、积分总量、已使用积分量
     @Override
     public void updatePlan(UpdateSubscriptionPlanDTO updateDTO) {
@@ -97,6 +125,10 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
             subscriptionPlan.setAdminAccId(updateDTO.getAdminAccId());
         }
 
+        if (StringUtils.isNotBlank(updateDTO.getName()) && !updateDTO.getName().equals(subscriptionPlan.getName())) {
+            subscriptionPlan.setName(updateDTO.getName());
+        }
+
         subscriptionPlan.setUpdateTime(LocalDateTime.now());
         updateById(subscriptionPlan);
 
@@ -107,8 +139,83 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
 
     }
 
-    // 查找 根据入参提供的参数进行分页查询
     @Override
+    public List<SubscriptionPlan> searchByOrganizationIdAndStatus(SubscriptionPlanPageQuery subscriptionPlanPageQuery) {
+        QueryWrapper<SubscriptionPlan> queryWrapper = new QueryWrapper<>();
+
+        if (Objects.nonNull(subscriptionPlanPageQuery.getOrganizationId())){
+            queryWrapper.lambda().eq(SubscriptionPlan::getOrganizationId, subscriptionPlanPageQuery.getOrganizationId());
+        } else {
+            throw new BusinessException("please.specify.the.organizationId");
+        }
+
+        if (!CollectionUtils.isEmpty(subscriptionPlanPageQuery.getStatus())) {
+            queryWrapper.lambda().in(SubscriptionPlan::getStatus, subscriptionPlanPageQuery.getStatus());
+        }
+
+        return baseMapper.selectList(queryWrapper);
+
+    }
+
+    @Override
+    public IPage<SubscriptionPlanVO> searchByPage(SubscriptionPlanPageQuery subscriptionPlanPageQuery) {
+        // 1. 参数校验
+        validatePageQuery(subscriptionPlanPageQuery);
+
+        // 2. 构建查询条件（不需要包含is_deleted条件，因为SQL中已包含）
+        LambdaQueryWrapper<SubscriptionPlan> queryWrapper = buildQueryWrapperWithoutDeleted(subscriptionPlanPageQuery);
+
+        // 3. 执行自定义的分页查询
+        Page<SubscriptionPlanVO> page = new Page<>(
+                subscriptionPlanPageQuery.getPage(),
+                subscriptionPlanPageQuery.getSize()
+        );
+
+        // 查询数据
+        return baseMapper.selectWithEmailPage(page, queryWrapper);
+    }
+
+    /**
+     * 构建查询条件（不包含is_deleted条件，因为SQL中已包含）
+     */
+    private LambdaQueryWrapper<SubscriptionPlan> buildQueryWrapperWithoutDeleted(SubscriptionPlanPageQuery query) {
+        LambdaQueryWrapper<SubscriptionPlan> wrapper = new LambdaQueryWrapper<>();
+
+        // 精确匹配条件
+        if (query.getId() != null) {
+            wrapper.eq(SubscriptionPlan::getId, query.getId());
+        }
+        if (query.getOrganizationId() != null) {
+            wrapper.eq(SubscriptionPlan::getOrganizationId, query.getOrganizationId());
+        }
+        if (query.getAdminAccId() != null) {
+            wrapper.eq(SubscriptionPlan::getAdminAccId, query.getAdminAccId());
+        }
+
+        // 时间范围查询
+        if (StringUtils.isNotBlank(query.getStartTime())) {
+            LocalDateTime startTime = parseDateTime(query.getStartTime());
+            wrapper.ge(SubscriptionPlan::getCreateTime, startTime);
+        }
+        if (StringUtils.isNotBlank(query.getEndTime())) {
+            LocalDateTime endTime = parseDateTime(query.getEndTime());
+            wrapper.le(SubscriptionPlan::getCreateTime, endTime);
+        }
+
+        // 状态匹配
+        if (!CollectionUtils.isEmpty(query.getStatus())) {
+            wrapper.in(SubscriptionPlan::getStatus, query.getStatus());
+        }
+
+        // 按创建时间倒序排序
+        wrapper.orderByDesc(SubscriptionPlan::getCreateTime);
+
+        return wrapper;
+    }
+
+
+    // 查找 根据入参提供的参数进行分页查询
+   /* @Override
     public IPage<SubscriptionPlanVO> searchByPage(SubscriptionPlanPageQuery subscriptionPlanPageQuery) {
         // 1. 参数校验
         validatePageQuery(subscriptionPlanPageQuery);
@@ -121,8 +228,9 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
         IPage<SubscriptionPlan> resultPage = baseMapper.selectPage(page, queryWrapper);
 
         // 4. 转换为VO并返回
+        // todo 用户邮箱
         return resultPage.convert((Function<SubscriptionPlan, SubscriptionPlanVO>) plan -> CopyUtil.copyObject(plan, SubscriptionPlanVO.class));
-    }
+    }*/
 
     /**
      * 参数校验
@@ -295,17 +403,6 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
         return currentPeriodEnd < currentTimestamp;
     }
 
-    // todo 切换管理员的账号
-
-    // 定时器更新管理员状态
-/*    public void updateEduAdminAccount() {
-        // 1. 扫描所有的订阅计划的开始时间currentPeriodStart
-
-        // 2. 当检测到有今天内开始有效的订阅，更新绑定的管理员的账号
-
-        // 3. 更新管理的信息包括，①根据订阅结束时间延长管理员账号有效期 ②根据积分上限更新管理员的积分，如果当前管理员正处于一个订阅中，则不做更新，但是允许切换
-    }*/
-
     public void activeSubscriptionPlan() {
         log.info("开始执行订阅计划生效检查...");
 
@@ -376,68 +473,120 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
         }
 
         // 4. 更新管理员账号信息
-        updateAdminAccount(adminAccount, plan);
+        updateAccount(adminAccount, plan, true);
 
         log.info("订阅计划处理完成，ID: {}", plan.getId());
     }
 
     /**
-     * 更新管理员账号信息
+     * 更新账号信息（管理员和子账号）
      */
-    private void updateAdminAccount(Account account, SubscriptionPlan plan) {
+    private void updateAccount(Account account, SubscriptionPlan plan, boolean isAdmin) {
         Account updateAccount = new Account();
         updateAccount.setId(account.getId());
 
-        // ① 根据订阅结束时间延长管理员账号有效期validEndTime
-//        Long newValidEndTime = calculateNewValidEndTime(account, plan);
+        // 通用更新逻辑
         updateAccount.setValidEndTime(plan.getCurrentPeriodEnd() * 1000);
-
-        // ② 根据积分上限更新管理员的积分credits和身份systemUser
-        // 暂时保留管理员自己购买的积分
-        if ((account.getSystemUser() == 5 || account.getSystemUser() == 7)
-                && Objects.nonNull(account.getCreditsUsageLimit())) {
-            BigDecimal leftCredits = account.getCredits().add(account.getCreditsUsage()).subtract(account.getCreditsUsageLimit());
-            if (leftCredits.compareTo(BigDecimal.ZERO) > 0) {
-                updateAccount.setCredits(plan.getCreditLimit().add(leftCredits));
-            } else {
-                updateAccount.setCredits(plan.getCreditLimit());
-            }
-        } else {
-            updateAccount.setCredits(plan.getCreditLimit().add(account.getCredits()));
-        }
-
-        // 根据组织ID判断用户类型
-        Integer newSystemUser = determineSystemUserType(plan);
-        updateAccount.setSystemUser(newSystemUser);
-
-        // 更新子账号数量限制
-        updateAccount.setCreditsUsage(plan.getCreditUsage());
-        updateAccount.setCreditsUsageLimit(plan.getCreditLimit());
-        updateAccount.setSubAccountNum(plan.getAccountNum());
-
-        // 关联订阅计划ID
         updateAccount.setSubscriptionPlanId(plan.getId());
 
         // 更新组织信息
-        updateAccount.setOrganizationId(plan.getOrganizationId());
+        Organization organization = organizationMapper.selectById(plan.getOrganizationId());
+        if (Objects.nonNull(organization)) {
+            updateAccount.setOrganizationId(plan.getOrganizationId());
+            updateAccount.setOrganizationName(organization.getName());
+        } else {
+            log.error("organization id为 {} 的组织，在表中找不到对应记录", plan.getOrganizationId());
+            throw new BusinessException("unknown.organization");
+        }
 
-        // 如果是组织管理员，设置isAdmin标志
-/*        if (isOrganizationAdmin(newSystemUser)) {
-            updateAccount.setIsAdmin(1);
-        }*/
+        // 根据用户类型设置不同的业务逻辑
+        if (isAdmin) {
+            updateAdminSpecificFields(updateAccount, account, plan);
+        } else {
+            updateSubAccountSpecificFields(updateAccount, account, plan);
+        }
 
         // 执行更新
         int rows = accountMapper.updateById(updateAccount);
         if (rows > 0) {
-            log.info("管理员账号更新成功，ID: {}, 有效期至: {}, 用户类型: {}, 积分: {}",
+            log.info("{}更新成功，ID: {}, 有效期至: {}, 用户类型: {}, 积分: {}",
+                    isAdmin ? "管理员账号" : "子账号",
                     account.getId(),
                     formatTimestamp(plan.getCurrentPeriodEnd()),
-                    newSystemUser,
-                    plan.getCreditLimit());
-
+                    updateAccount.getSystemUser(),
+                    updateAccount.getCredits());
         } else {
-            log.error("管理员账号更新失败，ID: {}", account.getId());
+            log.error("{}更新失败，ID: {}", isAdmin ? "管理员账号" : "子账号", account.getId());
         }
+
+        // 仅子账号需要更新订阅计划的使用量
+        if (!isAdmin) {
+            updateSubscriptionPlanUsage(plan, updateAccount);
+        }
+    }
+
+    /**
+     * 更新管理员特有的字段
+     */
+    private void updateAdminSpecificFields(Account updateAccount, Account originalAccount, SubscriptionPlan plan) {
+        // 保留管理员自己购买的积分
+        if ((originalAccount.getSystemUser() == 5 || originalAccount.getSystemUser() == 7)
+                && Objects.nonNull(originalAccount.getCreditsUsageLimit())) {
+            BigDecimal leftCredits = originalAccount.getCredits()
+                    .add(originalAccount.getCreditsUsage())
+                    .subtract(originalAccount.getCreditsUsageLimit());
+
+            updateAccount.setCredits(leftCredits.compareTo(BigDecimal.ZERO) > 0
+                    ? plan.getCreditLimit().subtract(plan.getCreditUsage()).add(leftCredits)
+                    : plan.getCreditLimit().subtract(plan.getCreditUsage()));
+        } else {
+            updateAccount.setCredits(plan.getCreditLimit().subtract(plan.getCreditUsage()).add(originalAccount.getCredits()));
+        }
+
+        // 设置用户类型和其他字段
+        updateAccount.setSystemUser(determineSystemUserType(plan, true));
+        updateAccount.setCreditsUsage(plan.getCreditUsage());
+        updateAccount.setCreditsUsageLimit(plan.getCreditLimit());
+        updateAccount.setSubAccountNum(plan.getAccountNum());
+    }
+
+    /**
+     * 更新子账号特有的字段
+     */
+    private void updateSubAccountSpecificFields(Account updateAccount, Account originalAccount, SubscriptionPlan plan) {
+        // 计算可分配的积分
+        BigDecimal remainingCredits = plan.getCreditLimit().subtract(plan.getCreditUsage());
+        BigDecimal allocatedCredits = calculateAllocatedCredits(remainingCredits);
+
+        updateAccount.setParentId(plan.getAdminAccId());
+        updateAccount.setCreditsUsageLimit(allocatedCredits);
+        updateAccount.setCredits(allocatedCredits.add(originalAccount.getCredits()));
+        updateAccount.setCreditsUsage(BigDecimal.ZERO);
+        updateAccount.setSystemUser(determineSystemUserType(plan, false));
+    }
+
+    /**
+     * 计算分配给子账号的积分
+     */
+    private BigDecimal calculateAllocatedCredits(BigDecimal remainingCredits) {
+        if (remainingCredits.compareTo(new BigDecimal(1000)) > 0) {
+            return new BigDecimal(1000);
+        } else if (remainingCredits.compareTo(new BigDecimal(100)) > 0) {
+            return new BigDecimal(100);
+        } else if (remainingCredits.compareTo(BigDecimal.ZERO) > 0) {
+            return remainingCredits;
+        } else {
+            return BigDecimal.ZERO;
+        }
+    }
+
+    /**
+     * 更新订阅计划使用量（仅子账号）
+     */
+    private void updateSubscriptionPlanUsage(SubscriptionPlan plan, Account updatedAccount) {
+        plan.setCreditUsage(plan.getCreditUsage().add(updatedAccount.getCreditsUsageLimit()));
+        plan.setUpdateTime(LocalDateTime.now());
+        baseMapper.updateById(plan);
     }
 
     /**
@@ -463,7 +612,7 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
     /**
      * 根据计划确定用户类型
      */
-    private Integer determineSystemUserType(SubscriptionPlan plan) {
+    private Integer determineSystemUserType(SubscriptionPlan plan, boolean isAdmin) {
         // 根据组织ID, 去organization表中查询判断是学校还是企业
         Long orgId = plan.getOrganizationId();
 
@@ -473,16 +622,18 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
             log.error("未知组织id: {}", orgId);
             throw new BusinessException("unknown.organization");
         }
-        if (organization.getType().equals("Enterprise")) {
-            return 5; // 学校管理员
+        if (organization.getType().equals("Enterprise") && isAdmin) {
+            return 5; // 企业管理员
+        } else if (organization.getType().equals("Enterprise")) {
+            return 6; // 企业子账号
+        } else if (organization.getType().equals("Education") && isAdmin) {
+            return 7; // 学校管理员
         } else if (organization.getType().equals("Education")) {
-            return 7; // 企业管理员
+            return 8; // 学校子账号
         } else {
             log.error("组织id未知组织类型");
+            throw new BusinessException("unknown.type");
         }
-
-        // 默认为教育管理员
-        return 7;
     }
 
     /**
@@ -636,7 +787,7 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
                     adminAccount.getId(), otherActiveSubscriptions.size(), earliestActivePlan.getId());
 
             // 3. 切换到开始最早的订阅
-            updateAdminAccount(adminAccount, earliestActivePlan);
+            updateAccount(adminAccount, earliestActivePlan, true);
 
             // 4. 修改订阅状态
             earliestActivePlan.setStatus(SubscriptionPlan.SubscriptionStatus.ACTIVE.name());
@@ -703,40 +854,136 @@ public class SubscriptionPlanServiceImpl extends ServiceImpl<SubscriptionPlanMap
     }
 
     /**
-     * 管理员切换当前管理的订阅
+     * 切换订阅计划（管理员和子账号）
+     * @param subscriptionPlanId 订阅计划ID
+     * @param targetAccId 目标账号ID（管理员或子账号ID）
+     * @param isAdmin 是否是管理员切换
+     */
+    public void switchSubscriptionPlan(Long subscriptionPlanId, Long targetAccId, boolean isAdmin) {
+        // 1. 获取当前用户和基础数据校验
+        Long currentUserId = UserContext.getUserHolder().getId();
+
+        // 获取订阅计划
+        SubscriptionPlan subscriptionPlan = baseMapper.selectById(subscriptionPlanId);
+        validateSubscriptionPlan(subscriptionPlan);
+
+        // 权限校验
+        validatePermission(currentUserId, subscriptionPlan);
+
+        // 确定目标账号ID
+        Long finalTargetAccId = determineTargetAccountId(currentUserId, targetAccId, isAdmin);
+
+        // 获取目标账号
+        Account targetAccount = accountMapper.selectById(finalTargetAccId);
+        if (Objects.isNull(targetAccount)) {
+            throw new BusinessException(isAdmin ? "unknown.administrator.user" : "unknown.sub.account");
+        }
+
+        // 管理员权限校验
+        if (isAdmin) {
+            validateAdminPermission(finalTargetAccId, subscriptionPlan);
+        } else {
+            validateSubAccountPermission(currentUserId, subscriptionPlan, targetAccount);
+        }
+
+        // 检查是否已经是当前管理的订阅
+        if (targetAccount.getSubscriptionPlanId() != null &&
+                targetAccount.getSubscriptionPlanId().equals(subscriptionPlanId)) {
+            log.info("用户：{} 当前正在订阅 {} 中", finalTargetAccId, subscriptionPlanId);
+            return;
+        }
+
+        // 2. 执行切换操作
+        if (isAdmin) {
+            // 管理员直接更新
+            updateAccount(targetAccount, subscriptionPlan, true);
+        } else {
+            // 子账号需要先从原订阅移除
+            accountService.removeSubAccount(new AddSubAccountDTO(Collections.singletonList(finalTargetAccId)), currentUserId);
+            updateAccount(accountMapper.selectById(finalTargetAccId), subscriptionPlan, false);
+        }
+    }
+
+    /**
+     * 管理员切换当前管理的订阅（保持原有接口）
      */
     public void switchSubscriptionPlan(Long subscriptionPlanId, Long adminAccId) {
-        // 1. 权限校验
-        Long accountId = UserContext.getUserHolder().getId();
-        SubscriptionPlan subscriptionPlan = baseMapper.selectById(subscriptionPlanId);
+        switchSubscriptionPlan(subscriptionPlanId, adminAccId, true);
+    }
+
+    /**
+     * 子账号切换订阅计划（保持原有接口）
+     */
+    public void switchSubAccSubscriptionPlan(Long subscriptionPlanId, Long subAccId) {
+        switchSubscriptionPlan(subscriptionPlanId, subAccId, false);
+    }
+
+    /**
+     * 校验订阅计划
+     */
+    private void validateSubscriptionPlan(SubscriptionPlan subscriptionPlan) {
         if (Objects.isNull(subscriptionPlan)) {
             throw new BusinessException("unknown.subscription.plan");
         }
         if (subscriptionPlan.getStatus().equals(SubscriptionPlan.SubscriptionStatus.EXPIRED.name())) {
             throw new BusinessException("subscription.has.expired");
         }
-        if (!accountId.equals(subscriptionPlan.getAdminAccId()) && !accountId.equals(87L)) {
+    }
+
+    /**
+     * 权限校验
+     */
+    private void validatePermission(Long userId, SubscriptionPlan subscriptionPlan) {
+        // 87L是特殊权限用户
+        if (!userId.equals(subscriptionPlan.getAdminAccId()) && !userId.equals(87L)) {
             throw new BusinessException("have.no.permission");
         }
+    }
 
-        // 2. 更新管理员积分
-        if (!accountId.equals(87L)) {
-            adminAccId = accountId;
-        }
-        Account account = accountMapper.selectById(adminAccId);
-        if (Objects.isNull(account)) {
-            throw new BusinessException("unknown.administrator.user");
+    /**
+     * 确定目标账号ID
+     */
+    private Long determineTargetAccountId(Long currentUserId, Long targetAccId, boolean isAdmin) {
+        // 如果是管理员切换且当前用户不是特殊权限用户，则使用当前用户ID
+        if (isAdmin && !currentUserId.equals(87L)) {
+            return currentUserId;
         }
+        return targetAccId;
+    }
+
+    /**
+     * 管理员权限校验
+     */
+    private void validateAdminPermission(Long adminAccId, SubscriptionPlan subscriptionPlan) {
         if (!adminAccId.equals(subscriptionPlan.getAdminAccId())) {
-            log.info("用户：{} 没有权限管理订阅：{}", adminAccId, subscriptionPlanId);
+            log.info("用户：{} 没有权限管理订阅：{}", adminAccId, subscriptionPlan.getId());
             throw new BusinessException("no.permission.manage.subscription", ResultEnum.PROMPT.getCode());
         }
-        if (account.getSubscriptionPlanId().equals(subscriptionPlanId)) {
-            log.info("用户：{} 当前正在管理订阅 {}", adminAccId, subscriptionPlanId);
-            return;
+    }
+
+    /**
+     * 子账号权限校验
+     */
+    private void validateSubAccountPermission(Long adminAccId, SubscriptionPlan subscriptionPlan, Account subAccount) {
+        // 验证管理员是否有权限
+        validateAdminPermission(adminAccId, subscriptionPlan);
+
+        Account adminAcc = accountMapper.selectById(adminAccId);
+        if (!subAccount.getSubscriptionPlanId().equals(adminAcc.getSubscriptionPlanId())) {
+            throw new BusinessException("switch.failed.sub-account.not.under.your.active.subscription");
         }
 
-        updateAdminAccount(account, subscriptionPlan);
+        // 校验子账号总数是否达上限
+        QueryWrapper<Account> qw = new QueryWrapper<>();
+        qw.lambda().eq(Account::getOrganizationId, subscriptionPlan.getOrganizationId())
+                .eq(Account::getSubscriptionPlanId, subscriptionPlan.getId());
+        List<Account> accounts = accountMapper.selectList(qw);
+
+        if (accounts.size() >= subscriptionPlan.getAccountNum()) {
+
+            throw new BusinessException("Error: Sub-account quota reached (Max: " +
+                    adminAcc.getSubAccountNum() + "). Upgrade to create more.");
+        }
     }
 
 }
diff --git a/src/main/resources/messages_en.properties b/src/main/resources/messages_en.properties
index a6d53e54..972574a8 100644
--- a/src/main/resources/messages_en.properties
+++ b/src/main/resources/messages_en.properties
@@ -192,7 +192,7 @@ unknown.mode=unknown mode
 unknown.subscription.plan=unknown subscription plan
 unknown.subscription.status=Unknown subscription status.
 subscription.has.expired=Switch failed. The subscription has expired.
-unknown.administrator.user=Switch failed. Unknown administrator user.
+unknown.administrator.user=Operation failed. Unknown administrator user.
 no.permission.manage.subscription=Switch failed. You do not have permission to manage this subscription.
 unknown.organization=Unknown organization.
 valid.subscription.period=The plan is still within its valid period. Please delete it after it expires.
@@ -205,6 +205,9 @@ invalid.time.format=Invalid time format. Please use the yyyy-MM-dd HH:mm:ss form
 the.start.time.cannot.be.later.than.the.end.time=The start time cannot be later than the end time.
 page.size.limit=The number of items per page must be between 1 and 100.
 page.num.limit=The page number must be greater than 0.
+end.time.must.be.later.than.the.start.time=The subscription end time must be later than the start time.
+please.specify.the.organizationId=Please specify the organizationId.
+switch.failed.sub-account.not.under.your.active.subscription=Switch failed. Sub-account not under your active subscription.
 
 # 可能会报异常
 # Informative:
diff --git a/src/main/resources/messages_zh.properties b/src/main/resources/messages_zh.properties
index d5c5985f..ebba9619 100644
--- a/src/main/resources/messages_zh.properties
+++ b/src/main/resources/messages_zh.properties
@@ -188,7 +188,7 @@ unknown.mode=未知模式
 unknown.subscription.plan=未知订阅计划
 unknown.subscription.status=未知订阅状态
 subscription.has.expired=切换失败，订阅已过期
-unknown.administrator.user=切换失败，未知管理员用户
+unknown.administrator.user=操作失败，未知管理员用户
 no.permission.manage.subscription=切换失败，您没有权限管理该订阅
 unknown.organization=未知组织
 valid.subscription.period=计划仍在有效期内，请到期后再删除
@@ -201,6 +201,9 @@ invalid.time.format=时间格式错误，请使用yyyy-MM-dd HH:mm:ss格式
 the.start.time.cannot.be.later.than.the.end.time=开始时间不能晚于结束时间
 page.size.limit=每页数量必须在1-100之间
 page.num.limit=页码必须大于0
+end.time.must.be.later.than.the.start.time=订阅结束时间必须晚于开始时间
+please.specify.the.organizationId=请指定organizationId
+switch.failed.sub-account.not.under.your.active.subscription=切换失败，该子账号不属于您当前管理的订阅计划
 
 # 可能会报异常
 # Informative: