diff --git a/app/Service/Admin/Good/SkuService.php b/app/Service/Admin/Good/SkuService.php
index 829e930..b1792a0 100644
--- a/app/Service/Admin/Good/SkuService.php
+++ b/app/Service/Admin/Good/SkuService.php
@@ -76,7 +76,7 @@ class SkuService extends BaseService
         $insertModel->param = $this->request->input('param','');
         $insertModel->extra = $this->request->input('extra','');
         $insertModel->total_stock = $this->request->input('stock');
-//        $insertModel->surplus_stock = $this->request->input('stock');
+        $insertModel->surplus_stock = $this->request->input('stock');
         $insertModel->sales_num = 0;
         $insertModel->order_num = 0;
         $insertModel->cancel_num = 0;
@@ -114,6 +114,8 @@ class SkuService extends BaseService
             }
         }
 
+        $skuInfo->surplus_stock = $skuInfo->total_stock - $skuInfo->order_num;
+
         if ($skuInfo->order_num > 0 && $skuInfo->price != $this->request->input('price')) throw new ErrException('已有订单不可改价,退单后即可操作');
         else $skuInfo->price = $this->request->input('price');