diff --git a/hb_server/apps/sam/views_sale.py b/hb_server/apps/sam/views_sale.py
index 63381f1..c67c5ca 100644
--- a/hb_server/apps/sam/views_sale.py
+++ b/hb_server/apps/sam/views_sale.py
@@ -42,6 +42,8 @@ class SaleViewSet(CreateUpdateModelAMixin, ListModelMixin, RetrieveModelMixin, C
         with transaction.atomic():
             iproducts = vdata.pop('iproducts')
             vdata['count'] = len(iproducts)
+            if vdata['count'] + vdata['order'].delivered_count > vdata['order'].count:
+                raise exceptions.APIException('超过订单所需数量')
             sale = Sale.objects.create(**vdata)
             i_l = []
             for i in iproducts: