diff --git a/application/admin/controllers/WatermdController.php b/application/admin/controllers/WatermdController.php
index 9a9d186d..c8ff1dc4 100644
--- a/application/admin/controllers/WatermdController.php
+++ b/application/admin/controllers/WatermdController.php
@@ -175,7 +175,12 @@ class Admin_WatermdController extends Zend_Controller_Action
 					$sql="select sum(file_size) as fsize from westdc_fileinfo where meta_uuid = ?";
 					$this->db->setFetchMode(Zend_Db::FETCH_OBJ);
 					$row=$this->db->fetchRow($sql,array($uuid));
-					$transize_path->item(0)->nodeValue=$row->fsize;					
+					//转换单位为MB
+					$msize=round($row->fsize/(1024*1024),2);
+					if($msize>10){
+						$msize=round($size/(1024*1024),1);
+					}
+					$transize_path->item(0)->nodeValue=msize;					
 					$new_data = $dom->saveXML($root->item(0));
 					//防止错误
 					if (!empty($new_data))