diff --git a/esua-epdc/epdc-module/epdc-user/epdc-user-server/src/main/java/com/elink/esua/epdc/service/impl/UserServiceImpl.java b/esua-epdc/epdc-module/epdc-user/epdc-user-server/src/main/java/com/elink/esua/epdc/service/impl/UserServiceImpl.java
index 945ecda32..c488b016c 100644
--- a/esua-epdc/epdc-module/epdc-user/epdc-user-server/src/main/java/com/elink/esua/epdc/service/impl/UserServiceImpl.java
+++ b/esua-epdc/epdc-module/epdc-user/epdc-user-server/src/main/java/com/elink/esua/epdc/service/impl/UserServiceImpl.java
@@ -495,6 +495,9 @@ public class UserServiceImpl extends BaseServiceImpl<UserDao, UserEntity> implem
         EpdcCompleteAppUserDTO completeAppUser = formDto.getCompleteAppUser();
 
         UserDTO userDto = ConvertUtils.sourceToTarget(completeAppUser, UserDTO.class);
+        if (StringUtils.isBlank(userDto.getWxUnionId())) {
+            userDto.setWxUnionId(null);
+        }
         UserGridRelationDTO userGridRelation = formDto.getUserGridRelation();
 
         String userId = userDto.getId();