diff --git a/src/business/auth/controllers/login.controller.ts b/src/business/auth/controllers/login.controller.ts
index dee716b..76d5211 100644
--- a/src/business/auth/controllers/login.controller.ts
+++ b/src/business/auth/controllers/login.controller.ts
@@ -145,7 +145,11 @@ export class LoginController {
       res.status(HttpStatus.CREATED).json(result);
     } else {
       // 根据错误类型设置不同的状态码
-      if (result.error_code === 'REGISTER_FAILED') {
+      if (result.message?.includes('已存在')) {
+        // 资源冲突：用户名、邮箱、手机号已存在
+        res.status(HttpStatus.CONFLICT).json(result);
+      } else if (result.error_code === 'REGISTER_FAILED') {
+        // 其他注册失败：参数错误、验证码错误等
         res.status(HttpStatus.BAD_REQUEST).json(result);
       } else {
         res.status(HttpStatus.BAD_REQUEST).json(result);