diff --git a/app/Http/Admin/Services/ChapterContent.php b/app/Http/Admin/Services/ChapterContent.php
index 2ee8403c..3cc3fda3 100644
--- a/app/Http/Admin/Services/ChapterContent.php
+++ b/app/Http/Admin/Services/ChapterContent.php
@@ -197,6 +197,8 @@ class ChapterContent extends Service
             $fileRemote['fd']['url'] = $validator->checkFileUrl($fdUrl);
         }
 
+        $validator->checkRemoteFile($hdUrl, $sdUrl, $fdUrl);
+
         $chapterRepo = new ChapterRepo();
 
         $vod = $chapterRepo->findChapterVod($chapter->id);
diff --git a/app/Http/Admin/Views/chapter/edit_lesson_vod.volt b/app/Http/Admin/Views/chapter/edit_lesson_vod.volt
index 3718bf46..eff5554f 100644
--- a/app/Http/Admin/Views/chapter/edit_lesson_vod.volt
+++ b/app/Http/Admin/Views/chapter/edit_lesson_vod.volt
@@ -142,7 +142,7 @@
                         </div>
                     {% else %}
                         <div class="layui-inline" style="width:55%;">
-                            <input id="tc-sd-url" class="layui-input" type="text" name="file_remote[sd][url]" value="{{ remote_play_urls.sd.url }}">
+                            <input id="tc-sd-url" class="layui-input" type="text" name="file_remote[sd][url]" value="">
                         </div>
                         <div class="layui-inline">
                             <span class="layui-btn layui-btn-disabled">预览</span>
@@ -154,7 +154,7 @@
                     <label class="layui-form-label">极速地址</label>
                     {% if remote_play_urls.fd.url %}
                         <div class="layui-inline" style="width:55%;">
-                            <input id="tc-fd-url" class="layui-input" type="text" name="file_remote[fd][url]" value="{{ remote_play_urls.fd.url }}" lay-verify="required">
+                            <input id="tc-fd-url" class="layui-input" type="text" name="file_remote[fd][url]" value="{{ remote_play_urls.fd.url }}">
                         </div>
                         <div class="layui-inline">
                             <span class="layui-btn kg-preview" data-chapter-id="{{ chapter.id }}" data-play-url="{{ remote_play_urls.hd.url }}">预览</span>
@@ -162,7 +162,7 @@
                         </div>
                     {% else %}
                         <div class="layui-inline" style="width:55%;">
-                            <input id="tc-fd-url" class="layui-input" type="text" name="file_remote[fd][url]" value="" lay-verify="required">
+                            <input id="tc-fd-url" class="layui-input" type="text" name="file_remote[fd][url]" value="">
                         </div>
                         <div class="layui-inline">
                             <span class="layui-btn layui-btn-disabled">预览</span>
diff --git a/app/Http/Admin/Views/chapter/lessons_live.volt b/app/Http/Admin/Views/chapter/lessons_live.volt
index d93e6fe9..74acfb80 100644
--- a/app/Http/Admin/Views/chapter/lessons_live.volt
+++ b/app/Http/Admin/Views/chapter/lessons_live.volt
@@ -36,9 +36,9 @@
         <th>编号</th>
         <th>名称</th>
         <th>课件</th>
+        <th>学员</th>
         <th>点赞</th>
-        <th>评论</th>
-        <th>直播时间</th>
+        <th>时间</th>
         <th>推流</th>
         <th>排序</th>
         <th>免费</th>
@@ -60,8 +60,8 @@
                 <span class="layui-badge layui-bg-green">课</span>
             </td>
             <td>{{ item.resource_count }}</td>
+            <td>{{ item.user_count }}</td>
             <td>{{ item.like_count }}</td>
-            <td>{{ item.comment_count }}</td>
             <td>{{ live_time_info(item.attrs) }}</td>
             <td>{{ live_status_info(item.attrs['stream']['status']) }}</td>
             <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ update_url }}"></td>
diff --git a/app/Http/Admin/Views/chapter/lessons_read.volt b/app/Http/Admin/Views/chapter/lessons_read.volt
index e0a4d244..13891319 100644
--- a/app/Http/Admin/Views/chapter/lessons_read.volt
+++ b/app/Http/Admin/Views/chapter/lessons_read.volt
@@ -8,6 +8,7 @@
         <col>
         <col>
         <col>
+        <col>
         <col width="10%">
     </colgroup>
     <thead>
@@ -15,6 +16,7 @@
         <th>编号</th>
         <th>名称</th>
         <th>课件</th>
+        <th>学员</th>
         <th>点赞</th>
         <th>评论</th>
         <th>排序</th>
@@ -40,6 +42,7 @@
                 </p>
             </td>
             <td>{{ item.resource_count }}</td>
+            <td>{{ item.user_count }}</td>
             <td>{{ item.like_count }}</td>
             <td>{{ item.comment_count }}</td>
             <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ update_url }}"></td>
diff --git a/app/Validators/ChapterVod.php b/app/Validators/ChapterVod.php
index 3864c4fe..81651391 100644
--- a/app/Validators/ChapterVod.php
+++ b/app/Validators/ChapterVod.php
@@ -57,4 +57,11 @@ class ChapterVod extends Validator
         return $value;
     }
 
+    public function checkRemoteFile($hd, $sd, $fd)
+    {
+        if (empty($hd) && empty($sd) && empty($fd)) {
+            throw new BadRequestException('chapter_vod.remote_file_required');
+        }
+    }
+
 }
diff --git a/config/errors.php b/config/errors.php
index 935e6367..acf05cd7 100644
--- a/config/errors.php
+++ b/config/errors.php
@@ -269,6 +269,7 @@ $error['chapter_vod.invalid_duration'] = '无效的视频时长';
 $error['chapter_vod.invalid_file_id'] = '无效的文件编号';
 $error['chapter_vod.invalid_file_url'] = '无效的文件地址';
 $error['chapter_vod.invalid_file_ext'] = '无效的文件格式（目前只支持mp4，m3u8）';
+$error['chapter_vod.remote_file_required'] = '请填写远程播放地址';
 
 /**
  * 直播相关