diff --git a/hangtag-module-system/hangtag-module-system-biz/src/main/java/cn/hangtag/module/system/service/user/AdminUserServiceImpl.java b/hangtag-module-system/hangtag-module-system-biz/src/main/java/cn/hangtag/module/system/service/user/AdminUserServiceImpl.java
index 5b578b3..9b31406 100644
--- a/hangtag-module-system/hangtag-module-system-biz/src/main/java/cn/hangtag/module/system/service/user/AdminUserServiceImpl.java
+++ b/hangtag-module-system/hangtag-module-system-biz/src/main/java/cn/hangtag/module/system/service/user/AdminUserServiceImpl.java
@@ -100,6 +100,7 @@ public class AdminUserServiceImpl implements AdminUserService {
                 throw exception(USER_COUNT_MAX, tenant.getAccountCount());
             }
         });
+        createReqVO.setUsername(createReqVO.getEmail());
         // 1.2 校验正确性
         validateUserForCreateOrUpdate(null, createReqVO.getUsername(),
                 createReqVO.getMobile(), createReqVO.getEmail(), createReqVO.getDeptId(), createReqVO.getPostIds());
@@ -130,6 +131,7 @@ public class AdminUserServiceImpl implements AdminUserService {
             success = SYSTEM_USER_UPDATE_SUCCESS)
     public void updateUser(UserSaveReqVO updateReqVO) {
         updateReqVO.setPassword(null); // 特殊：此处不更新密码
+        updateReqVO.setUsername(updateReqVO.getEmail());
         // 1. 校验正确性
         AdminUserDO oldUser = validateUserForCreateOrUpdate(updateReqVO.getId(), updateReqVO.getUsername(),
                 updateReqVO.getMobile(), updateReqVO.getEmail(), updateReqVO.getDeptId(), updateReqVO.getPostIds());