diff --git a/Bootstrap.Admin/Models/ModelBase.cs b/Bootstrap.Admin/Models/ModelBase.cs
index f7568fec..5e68a614 100644
--- a/Bootstrap.Admin/Models/ModelBase.cs
+++ b/Bootstrap.Admin/Models/ModelBase.cs
@@ -17,7 +17,7 @@ namespace Bootstrap.Admin.Models
             Theme = DictHelper.RetrieveActiveTheme();
             IsDemo = DictHelper.RetrieveSystemModel();
             ShowCardTitle = DictHelper.RetrieveCardTitleStatus() ? "" : "no-card-header";
-            ShowSideBar = DictHelper.RetrieveSidebarStatus() ? "" : "sidebar-open";
+            ShowSideBar = DictHelper.RetrieveSidebarStatus() ? "" : "collapsed";
         }
 
         /// <summary>
diff --git a/Bootstrap.Admin/Views/Shared/Navigator.cshtml b/Bootstrap.Admin/Views/Shared/Navigator.cshtml
index e5488918..fb840d74 100644
--- a/Bootstrap.Admin/Views/Shared/Navigator.cshtml
+++ b/Bootstrap.Admin/Views/Shared/Navigator.cshtml
@@ -1,5 +1,5 @@
 ﻿@model NavigatorBarModel
-<aside>
+<aside class="@Model.ShowSideBar">
     <div class="bg"></div>
     <div class="nav-brand justify-content-center">
         <a href="~/Admin/Index">
diff --git a/Bootstrap.Admin/Views/Shared/_Layout.cshtml b/Bootstrap.Admin/Views/Shared/_Layout.cshtml
index f893ecfb..9e830cd2 100644
--- a/Bootstrap.Admin/Views/Shared/_Layout.cshtml
+++ b/Bootstrap.Admin/Views/Shared/_Layout.cshtml
@@ -1,5 +1,4 @@
-﻿@model ModelBase
-<!DOCTYPE html>
+﻿<!DOCTYPE html>
 <html lang="zh-cn">
 <head>
     <meta charset="utf-8">
@@ -14,7 +13,7 @@
         <link href="../css/IE8.css" rel="stylesheet" />
     <![endif]-->
 </head>
-<body class="@Model.ShowSideBar">
+<body>
     <!--[if lt IE 10 ]>
     <div id="ieAlert" class="alert alert-danger alert-dismissible">
         <div>当前浏览器版本太低，不支持本系统，请升级到至少IE10 <a href="../browser/IE10.exe" target="_blank">本地下载</a> <a href="https://support.microsoft.com/zh-cn/help/17621/internet-explorer-downloads" target="_blank">微软下载</a>，或者使用Chrome浏览器 <a href="../browser/ChromeSetup.exe" target="_blank">本地下载</a></div>
diff --git a/Bootstrap.Admin/wwwroot/js/common-scripts.js b/Bootstrap.Admin/wwwroot/js/common-scripts.js
index 167f6af0..fdc105ba 100644
--- a/Bootstrap.Admin/wwwroot/js/common-scripts.js
+++ b/Bootstrap.Admin/wwwroot/js/common-scripts.js
@@ -200,6 +200,16 @@ $(function () {
         }
     });
 
+    // 大于 769 时考虑网站设置 收缩侧边栏
+    if($(window).width() > 769) {
+        var $ele = $('aside');
+        var collapsed = $ele.hasClass('collapsed');
+        if(collapsed) {
+            $('body').addClass('sidebar-open');
+            $ele.removeClass('collapsed');
+        }
+    }
+
     $('.sidebar-toggle-box').on('click', function () {
         $('body').toggleClass('sidebar-open');
     });
