diff --git a/webapp/controller/ShopController.class.php b/webapp/controller/ShopController.class.php
index c5ccdd61..269b1192 100644
--- a/webapp/controller/ShopController.class.php
+++ b/webapp/controller/ShopController.class.php
@@ -469,6 +469,7 @@ class ShopController extends BaseAuthedController {
 
     private function getInAppBalance()
     {
+        $totalAmount = InAppRecord::getTotalAmount();
         $recordDb = InAppRecord::get();
         $upLimit = mt\Parameter::getVal('inapp_daily_up_limit', 0);
         $todayAmount = 0;
diff --git a/webapp/models/InAppRecord.php b/webapp/models/InAppRecord.php
index 18b2b255..86bde406 100644
--- a/webapp/models/InAppRecord.php
+++ b/webapp/models/InAppRecord.php
@@ -20,6 +20,22 @@ class InAppRecord extends BaseModel {
         return $row;
     }
 
+    public static function getTotalAmount()
+    {
+        $row = myself()->_getSelfMysql()->execQueryOne(
+            'SELECT SUM(amount_ok) AS total_amount FROM t_inapp_record WHERE account_id=:account_id',
+            array(
+                'account_id' => myself()->_getAccountId()
+            )
+        );
+        if ($row) {
+            if ($row['total_amount']) {
+                return $row['total_amount'];
+            }
+        }
+        return 0;
+    }
+
     public static function addAmount($amount)
     {
         SqlHelper::upsert(