diff --git a/framework/Framework.php b/framework/Framework.php
index ea7cfe6..b53bf81 100644
--- a/framework/Framework.php
+++ b/framework/Framework.php
@@ -43,6 +43,7 @@ class Framework
             self::appNameSpace();
             self::resourcePath();
             self::frameworkPath();
+            self::sessionPath();
 
             require 'library/App.php';
             App::run(self::$type, self::$defaultModule);
@@ -117,6 +118,23 @@ class Framework
         }
     }
 
+    /**
+     * 指定session保存目录
+     * @param string $path
+     */
+    public static function sessionPath($path = '')
+    {
+        if (!defined('SESSION_PATH')) {
+            if (!$path) {
+                $path = './runtime/session/';
+            }
+            if (!is_dir($path)) {
+                mkdir($path, 0775, true);
+            }
+            define('SESSION_PATH', $path);
+        }
+    }
+
     /**
      * 指定默认访问位置
      * @param string $module
diff --git a/framework/middleware/Init.php b/framework/middleware/Init.php
index 6c0d74c..81b3b7c 100644
--- a/framework/middleware/Init.php
+++ b/framework/middleware/Init.php
@@ -23,6 +23,7 @@ class Init implements MiddlewareIfs
     {
         $sessionConfig = Register::get('Config')->get('session');
         if (!empty($sessionConfig) && $sessionConfig['open'] === true) {
+            session_save_path(SESSION_PATH);
             session_start();
         }
 
diff --git a/public/index.php b/public/index.php
index aa330b2..dfaa44c 100644
--- a/public/index.php
+++ b/public/index.php
@@ -2,6 +2,8 @@
 
 use \top\Framework;
 
+$m1 = microtime(true);
+
 require '../framework/Framework.php';
 
 // 可能你会使用到下面这些配置
@@ -18,6 +20,10 @@ require '../framework/Framework.php';
 // Framework::appNameSpace('app');
 // 可使用常量APP_NS取得该值
 
+// session保存目录，缺省值：./runtime/session/
+// Framework::sessionPath('./runtime/session/');
+// 可使用常量SESSION_PATH取得该值
+
 // 框架目录，缺省值：Framework.php的绝对路径
 // Framework::frameworkPath('../framework');
 // 可使用常量FRAMEWORK_PATH取得该值
@@ -34,3 +40,7 @@ require '../framework/Framework.php';
 
 Framework::appPath('../application/');
 Framework::startApp();
+
+$m2 = microtime(true);
+
+echo $m2 - $m1;
\ No newline at end of file