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 0fc61c15..d91ce874 100644
--- a/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java
@@ -384,7 +384,7 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
         if (Objects.isNull(authenticationOperationTypeEnum)) {
             throw new BusinessException("unknown.authentication.operation.type");
         }
-        Account emailAccount = getOneByEmail(emailSendDTO.getEmail());
+//        Account emailAccount = getOneByEmail(emailSendDTO.getEmail());
         String randomVerifyCode = RandomsUtil.generateVerifyCode(100000L, 999999L);
         LocalCacheUtils.setVerifyCodeCache(
                 emailSendDTO.getOperationType() + "_" + emailSendDTO.getEmail(), randomVerifyCode);
@@ -403,6 +403,12 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
                         SendEmailUtil.EXCEPTION_ID_TEMPLATE_ID, randomVerifyCode);
                 break;
             case BIND_MAILBOX:
+                QueryWrapper<Account> qw = new QueryWrapper<>();
+                qw.lambda().eq(Account::getUserEmail, emailSendDTO.getEmail());
+                List<Account> accounts = accountMapper.selectList(qw);
+                if (CollectionUtil.isNotEmpty(accounts)) {
+                    throw new BusinessException("This email has been bound");
+                }
                 result = SendEmailUtil.send(emailSendDTO.getEmail(), null,
                         SendEmailUtil.BIND_MAILBOX_TEMPLATE_ID, randomVerifyCode);
                 break;
@@ -2468,6 +2474,14 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
                 String name = (String) payload.get("name");
                 String pictureUrl = (String) payload.get("picture");
 
+                QueryWrapper<AccountExtend> qw = new QueryWrapper<>();
+                qw.lambda().eq(AccountExtend::getAuth, userId);
+                qw.lambda().eq(AccountExtend::getAuthType, "Google");
+                List<AccountExtend> accountExtends = accountExtendMapper.selectList(qw);
+
+                if (CollectionUtil.isNotEmpty(accountExtends)) {
+                    throw new BusinessException("The Google has been bound.");
+                }
 
                 AccountExtend accountExtendInsert = new AccountExtend();
                 accountExtendInsert.setAuth(userId);
@@ -2512,6 +2526,15 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
         if (unionId == null) {
             throw new IllegalArgumentException("无法获取 unionid，请检查微信开发平台配置");
         }
+        QueryWrapper<AccountExtend> qw = new QueryWrapper<>();
+        qw.lambda().eq(AccountExtend::getAuth, unionId);
+        qw.lambda().eq(AccountExtend::getAuthType, "WeChat");
+        List<AccountExtend> accountExtends = accountExtendMapper.selectList(qw);
+
+        if (CollectionUtil.isNotEmpty(accountExtends)) {
+            throw new BusinessException("The WeChat has been bound.");
+        }
+
         AccountExtend accountExtendInsert = new AccountExtend();
         accountExtendInsert.setAuth(unionId);
         accountExtendInsert.setAuthType("WeChat");