diff --git a/src/main/ui/static/payment/merchantid/merchant_id_manager.js b/src/main/ui/static/payment/merchantid/merchant_id_manager.js
index 7d79b3c64..fea7a0443 100644
--- a/src/main/ui/static/payment/merchantid/merchant_id_manager.js
+++ b/src/main/ui/static/payment/merchantid/merchant_id_manager.js
@@ -21,7 +21,9 @@ define(['angular', 'static/commons/commons', 'uiBootstrap', 'uiRouter', 'ngBootS
         $scope.toShow = false;
         $scope.client_loading = true;
 
+        // 前端渲染的end索引
         $scope.endIndexMap = {};
+        // 初始化索引是60
         const initEndIndex = 60;
         $scope.loadClient = function () {
              $http.get('/sys/merchant_id').then(function (resp) {
@@ -29,31 +31,44 @@ define(['angular', 'static/commons/commons', 'uiBootstrap', 'uiRouter', 'ngBootS
                  $scope.client_loading = false;
 
                  // 加入对应项的end索引值
-                 for (var k in $scope.clientsMap) {
-                     var length = $scope.clientsMap[k].length;
-                     if (length <= initEndIndex) {
-                         $scope.endIndexMap[k] = length;
-                     }
-                     else
-                         $scope.endIndexMap[k] = initEndIndex;
+                 // 如果数据小于60，索引值为数据长度
+                 // 否则设置为60
+                 for (var key in $scope.clientsMap) {
+                     $scope.endIndexMap[key] = initEndIndex;
+                     var length = $scope.clientsMap[key].length;
+                     if (length <= initEndIndex)
+                         $scope.endIndexMap[key] = length;
+
                  }
               });
             };
         $scope.loadClient();
 
+        /**
+         * 点击更多加载
+         * 判断加60后的索引是否超出数组长度
+         * @param key
+         */
         $scope.more = function(key) {
 
             var endIndex = $scope.endIndexMap[key] + initEndIndex;
-            // 判断加60后的索引是否超出数组长度
+            $scope.endIndexMap[key] = endIndex;
+
             if (endIndex > $scope.clientsMap[key].length) {
                 $scope.endIndexMap[key] = $scope.clientsMap[key].length;
             }
-            else
-                $scope.endIndexMap[key] = endIndex;
+
         };
 
+        /**
+         * 收起
+         * @param key
+         */
         $scope.packup = function(key) {
             $scope.endIndexMap[key] = initEndIndex;
+            var length = $scope.clientsMap[key].length;
+            if (length <= initEndIndex)
+                $scope.endIndexMap[key] = length;
         };
 
         $scope.showClient = function (sub_merchant_id) {