diff --git a/db/app_uoj233.sql b/db/app_uoj233.sql
index ee08e17..397ad22 100644
--- a/db/app_uoj233.sql
+++ b/db/app_uoj233.sql
@@ -898,7 +898,7 @@ UNLOCK TABLES;
 CREATE TABLE `user_system_msg` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `title` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
-  `content` varchar(300) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `content` text COLLATE utf8mb4_unicode_ci NOT NULL,
   `receiver` varchar(20) COLLATE utf8mb4_unicode_ci NOT NULL,
   `send_time` datetime NOT NULL,
   `read_time` datetime DEFAULT NULL,
diff --git a/web/app/controllers/subdomain/blog/blog_delete.php b/web/app/controllers/subdomain/blog/blog_delete.php
index 121a72c..56ceff3 100644
--- a/web/app/controllers/subdomain/blog/blog_delete.php
+++ b/web/app/controllers/subdomain/blog/blog_delete.php
@@ -20,7 +20,20 @@
 	
 	$delete_form = new UOJForm('delete');
 	$delete_form->handle = function() {
-		global $blog;
+		global $myUser, $blog;
+
+		if ($myUser['username'] != $blog['poster']) {
+			$poster_user_link = getUserLink($blog['poster']);
+			$admin_user_link = isSuperUser($myUser) ? '管理员' : getUserLink($myUser['username']);
+			$blog_content = HTML::escape($blog['content_md']);
+			$content = <<<EOD
+<p>{$poster_user_link} 您好：</p>
+<p>您的博客 <b>{$blog['title']}</b>（ID：{$blog['id']}）已经被 {$admin_user_link} 删除，现将博客原文备份发送给您，请查收。</p>
+<pre><code class="language-markdown">{$blog_content}</code></pre>
+EOD;
+				sendSystemMsg($blog['poster'], '博客删除通知', $content);
+		}
+
 		deleteBlog($blog['id']);
 	};
 	$delete_form->submit_button_config['class_str'] = 'btn btn-danger';