diff --git a/cash-service/account-service/src/main/java/com/czg/service/account/service/impl/ShopInfoServiceImpl.java b/cash-service/account-service/src/main/java/com/czg/service/account/service/impl/ShopInfoServiceImpl.java
index e48db198..c67a3ddb 100644
--- a/cash-service/account-service/src/main/java/com/czg/service/account/service/impl/ShopInfoServiceImpl.java
+++ b/cash-service/account-service/src/main/java/com/czg/service/account/service/impl/ShopInfoServiceImpl.java
@@ -146,7 +146,9 @@ public class ShopInfoServiceImpl extends ServiceImpl<ShopInfoMapper, ShopInfo> i
         // 如果店铺类型是单店，是否主店要设为否
         if (ShopTypeEnum.ONLY.getValue().equals(shopInfoAddDTO.getShopType())) {
             shopInfoAddDTO.setIsHeadShop(YesNoEnum.NO.value());
-            shopInfoAddDTO.setMainId(null);
+            if(shopInfoAddDTO.getMainId() != null) {
+                throw new CzgException("单店不允许设置主店ID");
+            }
         } else {
             if (shopInfoAddDTO.getIsHeadShop() == null) {
                 throw new CzgException("加盟店/连锁店请选择是否主店");