diff --git a/lib/DirScanner.php b/lib/DirScanner.php
index b937420..14ee655 100644
--- a/lib/DirScanner.php
+++ b/lib/DirScanner.php
@@ -69,6 +69,12 @@ Class DirScanner {
         'jpeg',    //图片
     );
 
+    public $exiftoolSupported = false;
+    public $exiftoolSupportFileExtensions = array(
+        'mp4',     //视频
+        'mov',     //视频
+    );
+
     //暂未使用
     /*
     protected $maxReadFilesize = array(                  //默认每种文件读取内容最大大小
@@ -323,6 +329,21 @@ Class DirScanner {
             if ($photo_create_time > 0) {
                 $data['original_ctime'] = $photo_create_time;
             }
+        }else if ($this->exiftoolSupported && in_array($extension, $this->exiftoolSupportFileExtensions)) {
+            //try to exec command to get original create time of videos
+            try {
+                $output = shell_exec( sprintf("exiftool -createdate %s", escapeshellarg($realpath)) );
+
+                //output samples:
+                //Create Date                     : 2024:06:01 20:47:06
+                //Create Date                     : 0000:00:00 00:00:00
+                if (!empty($output) && strpos($output, ': 0000:') === false) {
+                    $dateArr = explode(' : ', $output);
+                    $data['original_ctime'] = strtotime($dateArr[1]);
+                }
+            }catch(Exception $e) {
+                //do nothing
+            }
         }
 
         return $data;
diff --git a/themes/beauty/controller/CommandController.php b/themes/beauty/controller/CommandController.php
index 902f239..35c8174 100644
--- a/themes/beauty/controller/CommandController.php
+++ b/themes/beauty/controller/CommandController.php
@@ -144,6 +144,7 @@ eof;
     //扫描媒体文件：图片、视频、音乐
     //TODO: 把它们按年份、月份归类，并缓存到/runtime/cache/目录，方便前端展示读取
     //把当前扫描进度保存到单独的缓存文件，便于用户随时获取
+    //TODO: 没有original_ctime的视频文件调用exiftool获取拍摄时间
     protected function scanMediaFiles($dirpath = '') {
         $rootDir = __DIR__ . '/../../../www/' . FSC::$app['config']['content_directory'];
         if (empty($dirpath)) {
diff --git a/themes/beauty/controller/SiteController.php b/themes/beauty/controller/SiteController.php
index cb681e0..a44e461 100644
--- a/themes/beauty/controller/SiteController.php
+++ b/themes/beauty/controller/SiteController.php
@@ -8,6 +8,8 @@ require_once __DIR__ . '/../../../plugins/Common.php';
 require_once __DIR__ . '/../../../plugins/Html.php';
 
 Class SiteController extends Controller {
+    protected $dateIndexCacheKey = 'MainBotDateIndex';
+    protected $noOriginalCtimeFilesCacheKey = 'MainBotNoOriginalCtimeFiles';
 
     public function actionIndex() {
         //获取数据
@@ -257,11 +259,16 @@ Class SiteController extends Controller {
 
         $isAdminIp = Common::isAdminIp($this->getUserIp());        //判断是否拥有管理权限
 
+
+        //从缓存文件获取按年份、月份归类的索引数据
+        $cacheDataByDate = Common::getCache($this->dateIndexCacheKey);
+
         $viewName = 'index';
         $params = compact(
             'page', 'pageSize', 'cacheDataId', 'showType',
             'dirTree', 'scanResults', 'menus', 'htmlReadme', 'htmlCateReadme', 'mp3File', 'copyright',
-            'alertWarning', 'isAdminIp', 'allFiles'
+            'alertWarning', 'isAdminIp', 'allFiles',
+            'cacheDataByDate'
         );
         return $this->render($viewName, $params, $pageTitle);
     }
diff --git a/themes/beauty/views/site/index.php b/themes/beauty/views/site/index.php
index 3fa4d01..95cf964 100644
--- a/themes/beauty/views/site/index.php
+++ b/themes/beauty/views/site/index.php
@@ -58,6 +58,17 @@ $main_view_cls = $menu_ext_status == 'opened' ? '' : 'full';
 
             <!--侧边栏-->
             <ul class="nav navbar-fixed-left <?=$menu_expand_icon_cls?>">
+                <li class="menu-title">按年月归类</li>
+                <?php
+                if (!empty($viewData['cacheDataByDate'])) {
+                    print_r($viewData['cacheDataByDate']);
+
+                }else {
+                    echo <<<eof
+                <li>还没有按年月归类的索引数据，点击马上生成</li>
+eof;
+                }
+                ?>
                 <li class="menu-title">目录</li>
                 <?php
                 $breadcrumbs = !empty($viewData['breadcrumbs']) ? $viewData['breadcrumbs'] : [];