diff --git a/service/oauth.go b/service/oauth.go
index ea97608..4b445e3 100644
--- a/service/oauth.go
+++ b/service/oauth.go
@@ -441,6 +441,12 @@ func (os *OauthService) UnBindThird(thirdType string, userid uint) error {
 	return global.DB.Where("user_id = ? and third_type = ?", userid, thirdType).Delete(&model.UserThird{}).Error
 }
 
+// DeleteUserByUserId: When user is deleted, delete all third party bindings
+func (os *OauthService) DeleteUserByUserId(userid uint) error {
+	return global.DB.Where("user_id = ?", userid).Delete(&model.UserThird{}).Error
+}
+
+
 // InfoById 根据id取用户信息
 func (os *OauthService) InfoById(id uint) *model.Oauth {
 	u := &model.Oauth{}
diff --git a/service/user.go b/service/user.go
index 75fb653..cb8baa5 100644
--- a/service/user.go
+++ b/service/user.go
@@ -148,8 +148,24 @@ func (us *UserService) Create(u *model.User) error {
 func (us *UserService) Logout(u *model.User, token string) error {
 	return global.DB.Where("user_id = ? and token = ?", u.Id, token).Delete(&model.UserToken{}).Error
 }
+
+// Delete 删除用户和oauth信息
 func (us *UserService) Delete(u *model.User) error {
-	return global.DB.Delete(u).Error
+    // 使用锁进行保护，确保用户删除和 OAuth 删除的原子性
+    global.Lock.Lock("DeleteUserByUserId")
+    defer global.Lock.UnLock("DeleteUserByUserId")
+
+    // 删除用户
+    if err := global.DB.Delete(u).Error; err != nil {
+        return err
+    }
+
+    // 删除关联的 OAuth 信息
+    if err := AllService.OauthService.DeleteUserByUserId(u.Id); err != nil {
+        return err
+    }
+
+    return nil
 }
 
 // Update 更新