diff --git a/public/core.php b/public/core.php
index 9ee8f2544f1c41db4d37ad59931e5524a176bd87..079e7b30e3b1d824a4193349e4564c720d284303 100755
--- a/public/core.php
+++ b/public/core.php
@@ -43,7 +43,7 @@ define('__MY_VIEW_URL__', substr(__MY_URL__, 0, -1).$request_url);
 define('ROOT_PATH', str_replace('\\', DS, dirname(__FILE__)).DS);
 
 // 系统根目录 去除public
-define('ROOT', str_replace('public'.DS, '', ROOT_PATH));
+define('ROOT', substr(ROOT_PATH, 0, -7));
 
 // 定义应用目录
 define('APP_PATH', ROOT.'application'.DS);