diff --git a/gvsdsdk/models.py b/gvsdsdk/models.py
index 2ff9f56..47c0b03 100644
--- a/gvsdsdk/models.py
+++ b/gvsdsdk/models.py
@@ -174,7 +174,7 @@ class UserManager(BaseUserManager):
 class User(QModel):
     """用户表——系统核心身份模型（映射 SAAS 主库 User 表）"""
 
-    UserUUID = UUIDField(primary_key=True, db_column='UserUUID', verbose_name='用户UUID')
+    UserUUID = UUIDField(primary_key=True, db_column='UserUUID', verbose_name='用户UUID', default=uuid.uuid4)
     UserName = models.CharField(max_length=256, unique=True, db_column='UserName', verbose_name='用户名')
     UserPassword = models.CharField(max_length=60, default='', db_column='UserPassword', verbose_name='密码')
     UserPositionStatus = models.SmallIntegerField(default=0, db_column='UserPositionStatus', verbose_name='职位状态')