diff --git a/docs/grid.md b/docs/grid.md
index 51d00ac..6b29353 100644
--- a/docs/grid.md
+++ b/docs/grid.md
@@ -579,7 +579,7 @@ $grid->column('name')->itemSuffix("折")
 
 
 
-### 树形列表
+## 树形列表
 
 >用清晰的层级结构展示信息，可展开或折叠。
 
@@ -595,11 +595,12 @@ public function children() {
 ```php
 $grid->model()->where('parent_id', 0);//设置查询条件
 $grid->tree();//启动树形表格
+$grid->rowKey('id');//设置rowKey，必须存在，默认为ID，如果你的Grid没有定义ID字段就要重新设置其他字段
 $grid->defaultExpandAll();//默认展开所有行
 ```
 
 
-### 关联模型
+## 关联模型
 >要成功显示关联模型的值，必须设置`with`的值
 
 要显示关联模型的值，使用`.`来获取关联模型的值，可以多级显示，最后一级为要显示的值
diff --git a/src/Controllers/MenuController.php b/src/Controllers/MenuController.php
index 1572e41..8e85d65 100644
--- a/src/Controllers/MenuController.php
+++ b/src/Controllers/MenuController.php
@@ -79,6 +79,7 @@ protected function grid()
             ->emptyText("暂无菜单")
             ->defaultExpandAll(false);
 
+        $grid->column('id', "ID")->width(80);
         $grid->column('icon', "图标")->component(Icon::make())->width(80);
         $grid->column('title', "名称");
         $grid->column('order', "排序");
diff --git a/src/Grid/Model.php b/src/Grid/Model.php
index fef379f..c7ae11f 100644
--- a/src/Grid/Model.php
+++ b/src/Grid/Model.php
@@ -413,18 +413,13 @@ protected function displayData($data)
                     data_set($item, $column->getName(), $n_value);
                 }
             }
-
-
-            if ($TreeChildren = data_get($item, $this->grid->getTreeChildrenName())) {
-                $TreeChildren = collect($TreeChildren)->map(function ($t_item) use ($key, $row) {
-                    data_set($t_item, 'grid_actions', $this->grid->getActions($row, $key));
-                    return $t_item;
-                })->all();
-                data_set($item, $this->grid->getTreeChildrenName(), $TreeChildren);
-            }
-
             data_set($item, 'grid_actions', $this->grid->getActions($row, $key));
 
+            //如果存在下级
+            if ($TreeChildren = data_get($row, $this->grid->getTreeChildrenName())) {
+                //递归处理下级列表
+                data_set($item, $this->grid->getTreeChildrenName(), $this->displayData($TreeChildren));
+            }
             $items->push($item);
         }