diff --git a/application/models/files.php b/application/models/files.php
index 0a39cb65..5c76c388 100644
--- a/application/models/files.php
+++ b/application/models/files.php
@@ -26,7 +26,7 @@ class files{
 			'flash' => array('swf', 'flv'),
 			'media' => array('swf', 'flv', 'mp3', 'wav', 'wma', 'wmv', 'mid', 'avi', 'mpg', 'asf', 'rm', 'rmvb'),
 			'file' => array('doc', 'docx', 'xls', 'xlsx', 'ppt', 'htm', 'html', 'txt', 'zip', 'rar', 'gz', 'bz2'),
-			'reviewatt'=>array('doc', 'docx', 'xls', 'xlsx', 'ppt', 'htm', 'html', 'txt', 'zip', 'rar', 'gz', 'bz2','gif', 'jpg', 'jpeg', 'png', 'bmp')
+			'reviewatt'=>array('doc', 'docx', 'xls', 'xlsx', 'ppt', 'htm', 'html', 'txt', 'zip', 'rar', 'gz', 'bz2','gif', 'jpg', 'jpeg', 'png', 'bmp','pdf')
 		);
 		//最大文件大小
 		$max_size = 1000000;