diff --git a/BBWY.Client/ViewModels/Order/ChoosePurchaseSchemeViewModel.cs b/BBWY.Client/ViewModels/Order/ChoosePurchaseSchemeViewModel.cs
index 0de90c7e..e003e85a 100644
--- a/BBWY.Client/ViewModels/Order/ChoosePurchaseSchemeViewModel.cs
+++ b/BBWY.Client/ViewModels/Order/ChoosePurchaseSchemeViewModel.cs
@@ -103,7 +103,7 @@ namespace BBWY.Client.ViewModels
 
         public void PreviewPurchase(PurchaseScheme purchaseScheme)
         {
-            var count = globalContext.User.Shop.PurchaseAccountList.Count();
+            var count = globalContext.User.Shop.PurchaseAccountList == null ? 0 : globalContext.User.Shop.PurchaseAccountList.Count();
             if (count > 1)
             {
                 //选择采购账号