diff --git a/inc/common.php b/inc/common.php
index abd34e3..47272f9 100644
--- a/inc/common.php
+++ b/inc/common.php
@@ -674,7 +674,7 @@ class SESS{
 		header('P3P:CP="IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT"'); 
 		//ini_set("session.save_handler","memcache");
 		//ini_set("session.save_path",$_CONFIG['memcache']['ip'].":".$_CONFIG['memcache']['port']);
-		ini_set('session.gc_maxlifetime',3600); 
+		ini_set('session.gc_maxlifetime',86400*7);
 		/*可以修改为使用文件方式保存session
 			ini_set("session.save_handler","files");
 			session_save_path( "session/");