diff --git a/app/appfront/modules/Checkout/controllers/CartController.php b/app/appfront/modules/Checkout/controllers/CartController.php
index 046ecb457..65f3eb07c 100644
--- a/app/appfront/modules/Checkout/controllers/CartController.php
+++ b/app/appfront/modules/Checkout/controllers/CartController.php
@@ -208,6 +208,7 @@ public function actionUpdateinfo()
             } else {
                 echo json_encode([
                     'status' => 'fail',
+                    'content' => Yii::$service->helper->errors->get(',')
                 ]);
                 $innerTransaction->rollBack();
             }
diff --git a/services/cart/QuoteItem.php b/services/cart/QuoteItem.php
index 358c8ffbd..41c6c2f0d 100644
--- a/services/cart/QuoteItem.php
+++ b/services/cart/QuoteItem.php
@@ -284,9 +284,19 @@ public function lessOneItem($item_id)
                 'cart_id' => $cart_id,
                 'item_id' => $item_id,
             ])->one();
+            $lessedQty = $one['qty'] - 1;
+            
+            $product = Yii::$service->product->getByPrimaryKey($one['product_id']);
+            if(isset($product['min_sales_qty']) && $product['min_sales_qty'] > 1){
+                if($lessedQty < $product['min_sales_qty']){
+                    Yii::$service->helper->errors->add('product less buy qty is '.$product['min_sales_qty']);
+                    
+                    return false;
+                }
+            }
             if ($one['item_id']) {
                 if ($one['qty'] > 1) {
-                    $one['qty'] = $one['qty'] - 1;
+                    $one['qty'] = $lessedQty;
                     $one->save();
                     // 重新计算购物车的数量
                     Yii::$service->cart->quote->computeCartInfo();