diff --git a/src/main/java/com/aida/seller/module/order/controller/OrderController.java b/src/main/java/com/aida/seller/module/order/controller/OrderController.java
index 5d06246..124e461 100644
--- a/src/main/java/com/aida/seller/module/order/controller/OrderController.java
+++ b/src/main/java/com/aida/seller/module/order/controller/OrderController.java
@@ -5,6 +5,7 @@ import com.aida.seller.common.result.PageResponse;
 import com.aida.seller.common.result.Response;
 import com.aida.seller.module.order.dto.OrderListDTO;
 import com.aida.seller.module.order.service.OrderService;
+import com.aida.seller.module.order.vo.BuyerOrderVO;
 import com.aida.seller.module.order.vo.OrderSummaryVO;
 import com.aida.seller.module.order.vo.OrderVO;
 import com.baomidou.mybatisplus.core.metadata.IPage;
@@ -12,10 +13,13 @@ import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.util.List;
+
 /**
  * My Orders - 订单管理控制器
  */
@@ -61,4 +65,10 @@ public class OrderController {
         IPage<OrderVO> orderPage = orderService.getOrderPage(dto, sellerId);
         return Response.success(PageResponse.success(orderPage));
     }
+
+    @PostMapping("/buyer/orders")
+    @Operation(summary = "根据买家ID查询订单列表（供远程调用）")
+    public Response<List<BuyerOrderVO>> getOrdersByBuyerId(@RequestParam Long buyerId) {
+        return Response.success(orderService.getOrdersByBuyerId(buyerId));
+    }
 }
diff --git a/src/main/java/com/aida/seller/module/order/entity/OrderInfoEntity.java b/src/main/java/com/aida/seller/module/order/entity/OrderInfoEntity.java
index e6ea3ab..8cc02ea 100644
--- a/src/main/java/com/aida/seller/module/order/entity/OrderInfoEntity.java
+++ b/src/main/java/com/aida/seller/module/order/entity/OrderInfoEntity.java
@@ -31,6 +31,9 @@ public class OrderInfoEntity implements Serializable {
     /** 订单状态：0-未支付，1-已支付，2-已取消 */
     private Integer status;
 
+    /** 店铺名称 */
+    private String shopName;
+
     /** 订单总金额（HK$） */
     private BigDecimal totalPrice;
 
diff --git a/src/main/java/com/aida/seller/module/order/entity/OrderItemEntity.java b/src/main/java/com/aida/seller/module/order/entity/OrderItemEntity.java
index b6ebdb2..5a185e2 100644
--- a/src/main/java/com/aida/seller/module/order/entity/OrderItemEntity.java
+++ b/src/main/java/com/aida/seller/module/order/entity/OrderItemEntity.java
@@ -1,6 +1,7 @@
 package com.aida.seller.module.order.entity;
 
 import com.baomidou.mybatisplus.annotation.*;
+import com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
 import lombok.Data;
@@ -8,6 +9,7 @@ import lombok.Data;
 import java.io.Serializable;
 import java.math.BigDecimal;
 import java.time.LocalDateTime;
+import java.util.List;
 
 /**
  * 订单商品明细表
@@ -53,4 +55,8 @@ public class OrderItemEntity implements Serializable {
     /** 是否删除：0-否，1-是 */
     @TableLogic
     private Integer deleted;
+    
+    /** 商品分类列表 */
+    @TableField(typeHandler = JacksonTypeHandler.class)
+    private List<String> productCategory;
 }
diff --git a/src/main/java/com/aida/seller/module/order/service/OrderService.java b/src/main/java/com/aida/seller/module/order/service/OrderService.java
index d3cca47..666a1b0 100644
--- a/src/main/java/com/aida/seller/module/order/service/OrderService.java
+++ b/src/main/java/com/aida/seller/module/order/service/OrderService.java
@@ -1,10 +1,13 @@
 package com.aida.seller.module.order.service;
 
 import com.aida.seller.module.order.dto.OrderListDTO;
+import com.aida.seller.module.order.vo.BuyerOrderVO;
 import com.aida.seller.module.order.vo.OrderSummaryVO;
 import com.aida.seller.module.order.vo.OrderVO;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 
+import java.util.List;
+
 /**
  * 订单服务接口
  */
@@ -26,4 +29,12 @@ public interface OrderService {
      * @return 分页后的订单列表，按下单时间降序排列
      */
     IPage<OrderVO> getOrderPage(OrderListDTO dto, Long sellerId);
+
+    /**
+     * 根据买家ID查询订单列表（供远程调用）
+     *
+     * @param buyerId 买家ID
+     * @return 买家订单列表
+     */
+    List<BuyerOrderVO> getOrdersByBuyerId(Long buyerId);
 }
diff --git a/src/main/java/com/aida/seller/module/order/service/OrderServiceImpl.java b/src/main/java/com/aida/seller/module/order/service/OrderServiceImpl.java
index 1f8c2ae..fe093bf 100644
--- a/src/main/java/com/aida/seller/module/order/service/OrderServiceImpl.java
+++ b/src/main/java/com/aida/seller/module/order/service/OrderServiceImpl.java
@@ -6,6 +6,8 @@ import com.aida.seller.module.order.entity.OrderInfoEntity;
 import com.aida.seller.module.order.entity.OrderItemEntity;
 import com.aida.seller.module.order.mapper.OrderInfoMapper;
 import com.aida.seller.module.order.mapper.OrderItemMapper;
+import com.aida.seller.module.order.vo.BuyerOrderItemVO;
+import com.aida.seller.module.order.vo.BuyerOrderVO;
 import com.aida.seller.module.order.vo.OrderSummaryVO;
 import com.aida.seller.module.order.vo.OrderVO;
 import com.aida.seller.util.MinioUtil;
@@ -123,4 +125,49 @@ public class OrderServiceImpl extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
         resultPage.setRecords(voList);
         return resultPage;
     }
+
+    @Override
+    public List<BuyerOrderVO> getOrdersByBuyerId(Long buyerId) {
+        LambdaQueryWrapper<OrderInfoEntity> wrapper = new LambdaQueryWrapper<>();
+        wrapper.eq(OrderInfoEntity::getBuyerId, buyerId);
+        wrapper.orderByDesc(OrderInfoEntity::getUpdateTime);
+
+        List<OrderInfoEntity> orders = this.list(wrapper);
+        if (orders.isEmpty()) {
+            return Collections.emptyList();
+        }
+
+        List<Long> orderIds = orders.stream()
+                .map(OrderInfoEntity::getId)
+                .collect(Collectors.toList());
+
+        Map<Long, List<OrderItemEntity>> itemsMap = orderItemMapper.selectList(
+                new LambdaQueryWrapper<OrderItemEntity>()
+                        .in(OrderItemEntity::getOrderId, orderIds)
+        ).stream()
+                .collect(Collectors.groupingBy(OrderItemEntity::getOrderId));
+
+        return orders.stream().map(order -> {
+            BuyerOrderVO vo = new BuyerOrderVO();
+            vo.setOrderId(order.getId());
+            vo.setUpdateTime(order.getUpdateTime());
+            vo.setTotalPrice(order.getTotalPrice());
+            vo.setStatus(order.getStatus());
+            vo.setShopName(order.getShopName());
+
+            List<OrderItemEntity> items = itemsMap.getOrDefault(order.getId(), Collections.emptyList());
+            List<BuyerOrderItemVO> itemVOs = items.stream().map(item -> {
+                BuyerOrderItemVO itemVO = new BuyerOrderItemVO();
+                itemVO.setId(item.getId());
+                itemVO.setThumbnailUrl(minioUtil.processMinioResource(item.getThumbnailUrl(), CommonConstants.MINIO_PATH_TIMEOUT));
+                itemVO.setListingName(item.getListingName());
+                itemVO.setProductCategory(item.getProductCategory());
+                itemVO.setPrice(item.getPrice());
+                return itemVO;
+            }).collect(Collectors.toList());
+            vo.setItems(itemVOs);
+
+            return vo;
+        }).collect(Collectors.toList());
+    }
 }
diff --git a/src/main/java/com/aida/seller/module/order/vo/BuyerOrderItemVO.java b/src/main/java/com/aida/seller/module/order/vo/BuyerOrderItemVO.java
new file mode 100644
index 0000000..9f27b16
--- /dev/null
+++ b/src/main/java/com/aida/seller/module/order/vo/BuyerOrderItemVO.java
@@ -0,0 +1,33 @@
+package com.aida.seller.module.order.vo;
+
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.List;
+
+@Data
+@Schema(description = "买家订单商品明细")
+public class BuyerOrderItemVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @Schema(description = "订单商品ID")
+    @JsonSerialize(using = ToStringSerializer.class)
+    private Long id;
+
+    @Schema(description = "商品缩略图URL")
+    private String thumbnailUrl;
+
+    @Schema(description = "商品名称")
+    private String listingName;
+
+    @Schema(description = "商品分类列表")
+    private List<String> productCategory;
+
+    @Schema(description = "成交单价（HK$）")
+    private BigDecimal price;
+}
diff --git a/src/main/java/com/aida/seller/module/order/vo/BuyerOrderVO.java b/src/main/java/com/aida/seller/module/order/vo/BuyerOrderVO.java
new file mode 100644
index 0000000..32539d7
--- /dev/null
+++ b/src/main/java/com/aida/seller/module/order/vo/BuyerOrderVO.java
@@ -0,0 +1,37 @@
+package com.aida.seller.module.order.vo;
+
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Data
+@Schema(description = "买家订单信息")
+public class BuyerOrderVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @Schema(description = "订货号")
+    @JsonSerialize(using = ToStringSerializer.class)
+    private Long orderId;
+
+    @Schema(description = "订单更新时间")
+    private LocalDateTime updateTime;
+
+    @Schema(description = "订单总金额（HK$）")
+    private BigDecimal totalPrice;
+
+    @Schema(description = "订单状态：0-未支付，1-已支付，2-已取消")
+    private Integer status;
+
+    @Schema(description = "店铺名称")
+    private String shopName;
+
+    @Schema(description = "商品明细列表")
+    private List<BuyerOrderItemVO> items;
+}
diff --git a/src/main/resources/db/schema.sql b/src/main/resources/db/schema.sql
index f0d0c2d..bb3525f 100644
--- a/src/main/resources/db/schema.sql
+++ b/src/main/resources/db/schema.sql
@@ -88,6 +88,7 @@ CREATE TABLE seller_order_item (
     price           DECIMAL(10,2) COMMENT '成交单价(HK$)',
     create_time     DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
     deleted         INT(1) DEFAULT 0 COMMENT '是否删除：0-否，1-是',
+    product_category JSON COMMENT '商品分类列表',
     INDEX idx_order_id (order_id),
     INDEX idx_listing_id (listing_id),
     INDEX idx_deleted (deleted)