diff --git a/app/controller/api/store/merchant/Merchant.php b/app/controller/api/store/merchant/Merchant.php
index 17728995..c421199d 100644
--- a/app/controller/api/store/merchant/Merchant.php
+++ b/app/controller/api/store/merchant/Merchant.php
@@ -268,7 +268,8 @@ class Merchant extends BaseController
         if(empty($merchantInfo)){
             return app('json')->fail('参数错误');
         }
-        $merchantInfo['unpaid_margin'] = $merchantInfo['margin'];
+        $margin = Db::name('MerchantType')->where('mer_type_id', $merchantInfo['type_id'])->value('margin');
+        $merchantInfo['unpaid_margin'] = bcsub($margin,$merchantInfo['paid_margin']);
         return app('json')->success($merchantInfo);
     }