diff --git a/src/main/java/com/iflytop/handacid/common/model/entity/User.java b/src/main/java/com/iflytop/handacid/common/model/entity/User.java
index 873d6db..910c024 100644
--- a/src/main/java/com/iflytop/handacid/common/model/entity/User.java
+++ b/src/main/java/com/iflytop/handacid/common/model/entity/User.java
@@ -6,7 +6,7 @@ import com.iflytop.handacid.common.base.BaseEntity;
 import com.iflytop.handacid.common.enums.EnableStatus;
 import com.iflytop.handacid.app.common.enums.UserRole;
 import io.swagger.v3.oas.annotations.media.Schema;
-import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.*;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 
@@ -19,15 +19,15 @@ import lombok.EqualsAndHashCode;
 @Data
 public class User extends BaseEntity {
 
-    @NotNull
+    @Size(min = 4, max = 12, message = "账号长度必须在4~12位之间")
     @Schema(description = "用户名")
     private String username;
 
-    @NotNull
+    @Size(min = 2, max = 6, message = "名称长度必须在2~6位之间")
     @Schema(description = "昵称")
     private String nickname;
 
-    @NotNull
+    @Size(min = 4, max = 18, message = "密码长度必须在4~18位之间")
     @JsonProperty(access = JsonProperty.Access.WRITE_ONLY)
     @Schema(description = "密码")
     private String password;