diff --git a/app/Http/Middleware/CheckSessionUserValid.php b/app/Http/Middleware/CheckSessionUserValid.php
index 31635f9b..6ba543c5 100644
--- a/app/Http/Middleware/CheckSessionUserValid.php
+++ b/app/Http/Middleware/CheckSessionUserValid.php
@@ -23,6 +23,8 @@ class CheckSessionUserValid
             if ($user && $user->getToken() == session('token')) {
                 // push user instance to repository
                 app('users')->set($user->uid, $user);
+                // bind current user to container
+                app()->instance('user.current', $user);
             } else {
                 // remove sessions & cookies
                 delete_sessions();
diff --git a/app/helpers.php b/app/helpers.php
index 801e070e..dcadb863 100644
--- a/app/helpers.php
+++ b/app/helpers.php
@@ -202,6 +202,16 @@ if (! function_exists('bs_custom_copyright')) {
     }
 }
 
+if (! function_exists('bs_announcement')) {
+
+    function bs_announcement()
+    {
+        $parser = new Parsedown();
+
+        return $parser->text(option('announcement'));
+    }
+}
+
 if (! function_exists('bs_nickname')) {
 
     function bs_nickname(\App\Models\User $user)
diff --git a/composer.json b/composer.json
index c7cbe1a7..2b974d68 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,8 @@
         "gregwar/captcha": "^1.1",
         "devitek/yaml-translation": "^2.0",
         "filp/whoops": "^2.1",
-        "swiggles/memcache": "^2.0"
+        "swiggles/memcache": "^2.0",
+        "erusev/parsedown": "^1.6"
     },
     "require-dev": {
         "fzaninotto/faker": "~1.4",
diff --git a/composer.lock b/composer.lock
index 2f5afad1..48dbd4ae 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "3f60d4698fec917a5fee5854b1ce5fed",
-    "content-hash": "1440843c226635c446993c00027c50ac",
+    "hash": "ff0e4c4559e77429c861ab50fedc8687",
+    "content-hash": "a2a5139be6747c19447f7f1feb023e1c",
     "packages": [
         {
             "name": "classpreloader/classpreloader",
@@ -199,6 +199,48 @@
             ],
             "time": "2015-11-06 14:35:42"
         },
+        {
+            "name": "erusev/parsedown",
+            "version": "1.6.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/erusev/parsedown.git",
+                "reference": "20ff8bbb57205368b4b42d094642a3e52dac85fb"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://packagist.phpcomposer.com/files/erusev/parsedown/20ff8bbb57205368b4b42d094642a3e52dac85fb.zip",
+                "reference": "20ff8bbb57205368b4b42d094642a3e52dac85fb",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "Parsedown": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Emanuil Rusev",
+                    "email": "hello@erusev.com",
+                    "homepage": "http://erusev.com"
+                }
+            ],
+            "description": "Parser for Markdown.",
+            "homepage": "http://parsedown.org",
+            "keywords": [
+                "markdown",
+                "parser"
+            ],
+            "time": "2016-11-02 15:56:58"
+        },
         {
             "name": "filp/whoops",
             "version": "2.1.4",
diff --git a/resources/views/admin/options.tpl b/resources/views/admin/options.tpl
index e587c6ac..698743ec 100644
--- a/resources/views/admin/options.tpl
+++ b/resources/views/admin/options.tpl
@@ -37,7 +37,7 @@
                             } ?>
 
                             <textarea name="announcement" class="form-control" rows="3">{{ option('announcement') }}</textarea>
-                            <p class="description">站点公告内容不会被转义，因此您可以使用 HTML 进行排版</p>
+                            <p class="description">可使用 Markdown 进行排版</p>
 
                         </div><!-- /.box-body -->
                         <div class="box-footer">
diff --git a/resources/views/user/index.tpl b/resources/views/user/index.tpl
index 6b13e6ad..141c4933 100644
--- a/resources/views/user/index.tpl
+++ b/resources/views/user/index.tpl
@@ -92,7 +92,7 @@
                         <h3 class="box-title">{{ trans('user.announcement') }}</h3>
                     </div><!-- /.box-header -->
                     <div class="box-body">
-                        {!! nl2br(option('announcement')) !!}
+                        {!! bs_announcement() !!}
                     </div><!-- /.box-body -->
                 </div>
             </div>