diff --git a/app/admin/controller/Post.php b/app/admin/controller/Post.php
index c0b262e..f5119c8 100644
--- a/app/admin/controller/Post.php
+++ b/app/admin/controller/Post.php
@@ -4,11 +4,13 @@ declare(strict_types=1);
 
 namespace app\admin\controller;
 
+use app\common\tools\PostBlock;
 use app\model\Category;
 use app\model\Post as ModelPost;
 use app\model\PostCategory;
 use app\model\PostTag;
 use app\model\Tag;
+use League\HTMLToMarkdown\HtmlConverter;
 use think\facade\Cache;
 use think\facade\Route;
 use think\facade\View;
@@ -29,7 +31,7 @@ class Post extends Common
             ->where('type', $this->request->param('type', 1))
             ->order('id desc')
             ->paginate([
-                'query' =>$this->request->get()
+                'query' => $this->request->get()
             ]);
 
         View::assign('list', $list);
@@ -91,6 +93,17 @@ class Post extends Common
         return $this->success('添加成功', url('index', ['type' => $this->request->param('type')]));
     }
 
+    public function convertHtml2Markdown()
+    {
+        $content = $this->request->post('content');
+
+        $converter = new HtmlConverter();
+
+        $markdown = $converter->convert($content);
+
+        return json_message(['markdown' => $markdown]);
+    }
+
     /**
      * 显示指定的资源
      *
diff --git a/app/model/Post.php b/app/model/Post.php
index d39c1a3..8a9364d 100644
--- a/app/model/Post.php
+++ b/app/model/Post.php
@@ -5,7 +5,9 @@ declare(strict_types=1);
 namespace app\model;
 
 use app\common\model\Base;
+use app\common\tools\PostBlock;
 use app\common\tools\PostShow;
+use League\HTMLToMarkdown\HtmlConverter;
 use think\facade\Cache;
 use think\facade\Request;
 use think\Model;
@@ -56,9 +58,6 @@ class Post extends Base
 
     public function getCommentCountAttr()
     {
-
-
-
         return PostComment::getPostCommentsCount($this->getData('id'));
     }
 
@@ -143,15 +142,26 @@ class Post extends Base
         return strtotime($value);
     }
 
-    public function setContentAttr($value)
-    {
-        return json_encode($value);
-    }
     public function setContentHtmlAttr($value)
     {
         return trim($value);
     }
 
+    public function getContentMarkdownAttr()
+    {
+        $content_html = $this->getAttr('content_html');
+
+
+        $content_html .= PostBlock::copyright($this);
+
+
+        $converter = new HtmlConverter(array('strip_tags' => true));
+
+        $markdown = $converter->convert($content_html);
+
+        return $markdown;
+    }
+
     public function getContentHtmlShowAttr()
     {
 
@@ -160,11 +170,6 @@ class Post extends Base
         return PostShow::handleCopyright($content);
     }
 
-    public function getContentAttr($value)
-    {
-        return json_decode($value, true);
-    }
-
     public function getPosterAttr($value)
     {
         if (empty($value)) {
diff --git a/composer.json b/composer.json
index b72f291..db6cc28 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,8 @@
         "ulthon/user_hub_client": "^1.0",
         "thepixeldeveloper/sitemap": "^5.1",
         "jaeger/querylist": "^4.2",
-        "jaeger/phpquery-single": "^1.1"
+        "jaeger/phpquery-single": "^1.1",
+        "league/html-to-markdown": "^5.1"
     },
     "require-dev": {
         "symfony/var-dumper": "^4.2"
diff --git a/view/admin/post/output.html b/view/admin/post/output.html
index 37d340b..a871a7a 100644
--- a/view/admin/post/output.html
+++ b/view/admin/post/output.html
@@ -63,6 +63,9 @@
             {:\\app\\common\\tools\\PostBlock::copyright($post)}
         </article>
     </div>
+    <div style="max-width: 715px;">
+        <textarea class="layui-textarea" autoHeight="true" id="post-markdown" placeholder="同步markdown内容" autocomplete="off">{$post->content_markdown|raw}</textarea>
+    </div>
 
     <div class="options-box layui-btn-container">
         <a class="copy-option layui-btn layui-btn-sm" target="_blank" href="{$post.read_url}">打开原文</a>
@@ -70,15 +73,16 @@
         <a class="copy-option layui-btn layui-btn-sm" href="#post-title">选中标题</a>
         <a class="copy-option layui-btn layui-btn-sm" href="#post-desc">选中描述</a>
         <a class="copy-option layui-btn layui-btn-sm select-content" href="#post-content">选中内容</a>
-        <div class=" layui-btn layui-btn-sm build-copyright" >插入声明</div>
-        <div class=" layui-btn layui-btn-sm remove-copyright" >删除声明</div>
-        <div class=" layui-btn layui-btn-sm show-copyright" >显示声明</div>
+        <div class=" layui-btn layui-btn-sm build-copyright">插入声明</div>
+        <div class=" layui-btn layui-btn-sm remove-copyright">删除声明</div>
+        <div class=" layui-btn layui-btn-sm show-copyright">显示声明</div>
         <div class="layui-btn layui-btn-sm code2base64">
             代码转临时图片
         </div>
         <div class="layui-btn layui-btn-sm resetcode">
             还原代码
         </div>
+        <a class=" layui-btn layui-btn-sm select-markdown" href="#post-markdown">选中markdown</a>
     </div>
 
     <script>
@@ -110,18 +114,17 @@
                 $('#post-content').find('pre').show().each(function (index, elem) {
                     $(elem).removeClass('tobase64')
                 })
-
-
             })
-
-
         })
 
-
         $('.copy-option').focusout(function (e) {
             copyContent($(this).attr('href'))
         })
 
+        $('.select-markdown').click(function () {
+            $('#post-markdown').select()
+        })
+
         $('.build-copyright').click(function () {
             var copyElem = $('.copyright').find('p').last();
 
@@ -167,6 +170,22 @@
             selection.addRange(range);
         }
 
+
+        $(function () {
+            $.fn.autoHeight = function () {
+                function autoHeight(elem) {
+                    elem.style.height = 'auto';
+                    elem.style.height = elem.scrollHeight + 20 + 'px';
+                }
+                this.each(function () {
+                    autoHeight(this);
+                    $(this).on('keyup', function () {
+                        autoHeight(this);
+                    });
+                });
+            }
+            $('textarea[autoHeight]').autoHeight();
+        })
     </script>
 </body>