diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/app/TbUserAppController.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/app/TbUserAppController.java
index 01a115fd..2acf2c87 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/app/TbUserAppController.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/app/TbUserAppController.java
@@ -29,6 +29,10 @@ public class TbUserAppController {
     @Transactional(rollbackFor = Exception.class)
     public Result<TbUser> addSave(@RequestBody TbUser tbUser)
     {
+        TbUser registerUser = tbUserService.lambdaQuery().eq(TbUser::getMobile, tbUser.getMobile()).one();
+        if(registerUser != null ){
+            return Result.error("用户已注册,请直接登陆!");
+        }
         tbUser.setPassword(DigestUtils.md5Hex(tbUser.getPassword()));
         int effectiveRows = tbUserService.insertTbUser(tbUser);
         if(effectiveRows > 0){