diff --git a/BBWYB.Server.Business/Vender/VenderBusiness.cs b/BBWYB.Server.Business/Vender/VenderBusiness.cs
index fe396a3..d84ad5d 100644
--- a/BBWYB.Server.Business/Vender/VenderBusiness.cs
+++ b/BBWYB.Server.Business/Vender/VenderBusiness.cs
@@ -4,6 +4,7 @@ using BBWYB.Server.Model;
 using BBWYB.Server.Model.Db.Mds;
 using BBWYB.Server.Model.Db.MDS;
 using BBWYB.Server.Model.Dto;
+using Org.BouncyCastle.Ocsp;
 using SDKAdapter.OperationPlatform.Client;
 using SDKAdapter.OperationPlatform.Models;
 using Yitter.IdGenerator;
@@ -50,6 +51,10 @@ namespace BBWYB.Server.Business
 
             if (string.IsNullOrEmpty(shopSettingRequest.PurchaseAccountId) || shopSettingRequest.PurchaseAccountId == "0")
             {
+                var isRepeat = fsqlManager.MDSfsql.Select<Purchaseaccount>().Where(pa => pa.AppKey == shopSettingRequest.AppKey &&
+                                                                                         pa.AppToken == shopSettingRequest.AppToken).Any();
+                if (isRepeat)
+                    throw new BusinessException($"采购账号重复");
                 shopSettingRequest.PurchaseAccountId = idGenerator.NewLong().ToString();
 
                 var mdspa = new Purchaseaccount()