diff --git a/cash-service/account-service/src/main/java/com/czg/service/account/service/impl/AShopUserServiceImpl.java b/cash-service/account-service/src/main/java/com/czg/service/account/service/impl/AShopUserServiceImpl.java
index b4a484e92..3378f6b07 100644
--- a/cash-service/account-service/src/main/java/com/czg/service/account/service/impl/AShopUserServiceImpl.java
+++ b/cash-service/account-service/src/main/java/com/czg/service/account/service/impl/AShopUserServiceImpl.java
@@ -172,6 +172,11 @@ public class AShopUserServiceImpl implements AShopUserService {
         shopUser.setUserId(userInfo.getId());
         shopUser.setMainShopId(shopInfoService.getMainIdByShopId(shopId));
         shopUser.setJoinTime(shopUser.getIsVip() != null && shopUser.getIsVip() == 1 ? DateUtil.date().toLocalDateTime() : null);
+        if (StrUtil.isBlank(shopUserAddDTO.getBirthDay())) {
+            shopUser.setBirthDay(null);
+        } else {
+            shopUser.setBirthDay(shopUserAddDTO.getBirthDay());
+        }
         return shopUserService.save(shopUser);
     }