diff --git a/coolstore-partner-service/src/main/java/com/cool/store/service/impl/SignFranchiseServiceImpl.java b/coolstore-partner-service/src/main/java/com/cool/store/service/impl/SignFranchiseServiceImpl.java
index 128c57921..ce55cf0b7 100644
--- a/coolstore-partner-service/src/main/java/com/cool/store/service/impl/SignFranchiseServiceImpl.java
+++ b/coolstore-partner-service/src/main/java/com/cool/store/service/impl/SignFranchiseServiceImpl.java
@@ -140,6 +140,10 @@ public class SignFranchiseServiceImpl implements SignFranchiseService, AuditResu
         if (Objects.isNull(request.getShopId())) {
             throw new ServiceException(ErrorCodeEnum.SHOP_ID_NOT_EXIST);
         }
+        SignFranchiseDO isExist = signFranchiseMapper.selectByShopId(request.getShopId());
+        if (Objects.nonNull(isExist) && Objects.isNull(request.getId())){
+            throw new ServiceException(ErrorCodeEnum.DUPLICATE_SUBMISSION);
+        }
         String lockKey = "submitSignFranchise:" + request.getShopId();
         //流水
         String lockValue = UUID.randomUUID().toString();