diff --git a/webapp/controller/BagController.class.php b/webapp/controller/BagController.class.php
index 96eec645..929209c6 100644
--- a/webapp/controller/BagController.class.php
+++ b/webapp/controller/BagController.class.php
@@ -380,6 +380,9 @@ class BagController extends BaseAuthedController {
     private function openBattleBox($itemDb,$itemMeta,$itemNum){
         $costItems = mt\Item::getUseCostItems($itemMeta);
         if (count($costItems) > 0){
+            foreach ($costItems as &$item){
+                $item['item_num'] *= $itemNum;
+            }
             $lackItem = null;
             if (!$this->_hasEnoughItems($costItems, $lackItem)) {
                 $this->_rspErr(3, $this->_getLackItemErrMsg($lackItem));
@@ -394,15 +397,29 @@ class BagController extends BaseAuthedController {
             $luckyParam = \mt\Parameter::getVal('economy_account_luck_K',0);
             $luckyMaxPro = \mt\Parameter::getVal('economy_account_luck_E',0);
             $prob = $luckyMaxPro * ($lucky / ($lucky+$luckyParam));
-            $times = $this->proEffect($prob,1);
-            $items = \services\LootService::dropOutItem($itemMeta['loot']);
-            if ($times > 0){
-                foreach ($items as &$item){
-                    $item['item_num'] += $item['item_num']*$times;
+            $items = array();
+            for ($i=0;$i<$itemNum;$i++){
+                $times = $this->proEffect($prob,1);
+                $itemsTemp = \services\LootService::dropOutItem($itemMeta['loot']);
+                if ($times > 0){
+                    foreach ($itemsTemp as $item){
+                        $item['item_num'] += $item['item_num']*$times;
+                        array_push($items,$item);
+                    }
+                }else{
+                    foreach ($itemsTemp as $item){
+                        array_push($items,$item);
+                    }
                 }
             }
+
+
+
         }else{
             $items = \services\LootService::dropOutItem($itemMeta['loot']);
+            foreach ($items as &$item){
+                $item['item_num'] *= $itemNum;
+            }
         }
         if (count($costItems) > 0){
             $this->_decItems($costItems);
@@ -410,7 +427,7 @@ class BagController extends BaseAuthedController {
         $this->_decItems(array(
             array(
                 'item_id' => $itemMeta['id'],
-                'item_num' => 1
+                'item_num' => $itemNum
             )
         ));
         $this->_addItems($items,$this->awardService,$this->propertyChgService);