diff --git a/src/main/java/com/rymcu/vertical/mapper/UserMapper.java b/src/main/java/com/rymcu/vertical/mapper/UserMapper.java
index aa2ed61..88b22c2 100644
--- a/src/main/java/com/rymcu/vertical/mapper/UserMapper.java
+++ b/src/main/java/com/rymcu/vertical/mapper/UserMapper.java
@@ -23,4 +23,6 @@ public interface UserMapper extends Mapper<User> {
     Integer updateUserRole(@Param("idUser") Integer idUser, @Param("idRole") Integer idRole);
 
     Integer updateStatus(@Param("idUser") Integer idUser, @Param("status") String status);
+
+    Integer selectCountByNickName(@Param("nickname") String nickname);
 }
\ No newline at end of file
diff --git a/src/main/java/com/rymcu/vertical/service/impl/UserServiceImpl.java b/src/main/java/com/rymcu/vertical/service/impl/UserServiceImpl.java
index efda0cc..48f99e9 100644
--- a/src/main/java/com/rymcu/vertical/service/impl/UserServiceImpl.java
+++ b/src/main/java/com/rymcu/vertical/service/impl/UserServiceImpl.java
@@ -58,7 +58,9 @@ public class UserServiceImpl extends AbstractService<User> implements UserServic
                 } else {
                     user = new User();
                     user.setAccount(email);
-                    user.setNickname(email.split("@")[0]);
+                    String nickname = email.split("@")[0];
+                    nickname = checkNickname(nickname);
+                    user.setNickname(nickname);
                     user.setEmail(email);
                     user.setPassword(Utils.entryptPassword(password));
                     user.setCreatedTime(new Date());
@@ -76,6 +78,14 @@ public class UserServiceImpl extends AbstractService<User> implements UserServic
         return map;
     }
 
+    private String checkNickname(String nickname) {
+        Integer result = userMapper.selectCountByNickName(nickname);
+        if (result > 0) {
+            return checkNickname(nickname + System.currentTimeMillis());
+        }
+        return nickname;
+    }
+
     @Override
     public Map login(String account, String password) {
         Map map = new HashMap(1);
diff --git a/src/main/java/mapper/UserMapper.xml b/src/main/java/mapper/UserMapper.xml
index 7d43f1a..5e84986 100644
--- a/src/main/java/mapper/UserMapper.xml
+++ b/src/main/java/mapper/UserMapper.xml
@@ -63,5 +63,8 @@
     <select id="selectRoleWeightsByUser" resultType="java.lang.Integer">
         select vr.weights from vertical_role vr left join vertical_user_role vur on vr.id = vur.id_role where vur.id_user = #{idUser}
     </select>
+    <select id="selectCountByNickName" resultType="java.lang.Integer">
+        select count(*) from vertical_user where nickname = #{nickname}
+    </select>
 
 </mapper>
\ No newline at end of file