diff --git a/src/main/java/top/suyiiyii/sims/entity/User.java b/src/main/java/top/suyiiyii/sims/entity/User.java
index b5c0a58..7fadf55 100644
--- a/src/main/java/top/suyiiyii/sims/entity/User.java
+++ b/src/main/java/top/suyiiyii/sims/entity/User.java
@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.tangzc.mpe.autotable.annotation.Column;
 import com.tangzc.mpe.autotable.annotation.ColumnId;
 import com.tangzc.mpe.autotable.annotation.Table;
+import com.tangzc.mpe.autotable.annotation.UniqueIndex;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
@@ -23,16 +24,21 @@ import lombok.NoArgsConstructor;
 public class User {
     @ColumnId(mode = IdType.AUTO, comment = "id主键")
     private Integer id;
+    @UniqueIndex
     @Column(comment = "学生id", notNull = true)
     private Integer studentId;
+    @UniqueIndex
     @Column(comment = "用户名", notNull = true)
     private String username;
     @Column(comment = "密码", notNull = true)
     private String password;
+    @UniqueIndex
     @Column(comment = "邮箱", notNull = true)
     private String email;
+    @UniqueIndex
     @Column(comment = "年级", notNull = true)
     private String grade;
+    @UniqueIndex
     @Column(comment = "用户所属团队", notNull = true)
     private String userGroup;
 }