diff --git a/Lang/en-us.php b/Lang/en-us.php
new file mode 100644
index 000000000..b0caec989
--- /dev/null
+++ b/Lang/en-us.php
@@ -0,0 +1,58 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+// $Id: en-us.php 3034 2012-06-20 16:07:41Z liu21st@gmail.com $
+
+/**
+ +------------------------------------------------------------------------------
+ * ThinkPHP English language package
+ +------------------------------------------------------------------------------
+ * @category   Think
+ * @package  Lang
+ * @author   liu21st <liu21st@gmail.com>
+ * @version  $Id: zh-cn.php 3034 2012-10-17 21:14:00Z yangweijiester@gmail.com $
+ +------------------------------------------------------------------------------
+ */
+return array(
+	//  core
+	'_MODULE_NOT_EXIST_'=>  'Module can not been loaded',
+	'_ERROR_ACTION_'=>      'Error action',
+	'_LANGUAGE_NOT_LOAD_'=> 'Can\'t load language package',
+	'_TEMPLATE_NOT_EXIST_'=>    'Template does\'t exist',
+	'_MODULE_'=>'Module',
+	'_ACTION_'=>'Action',
+	'_ACTION_NOT_EXIST_'=>'Action does\'t exist Or not defined',
+	'_MODEL_NOT_EXIST_'=>'Model does\'t exist Or not defined',
+	'_VALID_ACCESS_'=>'No access',
+	'_XML_TAG_ERROR_'=>'XML tag syntax errors',
+	'_DATA_TYPE_INVALID_'=>'Invlid data type!',
+	'_OPERATION_WRONG_'=>'Operation error occurs',
+	'_NOT_LOAD_DB_'=>'Unable to load the database',
+	'_NO_DB_DRIVER_'=>'Unable to load database driver',
+	'_NOT_SUPPORT_DB_'=>'The system is temporarily not support database',
+	'_NO_DB_CONFIG_'=>'Not define the database configuration',
+	'_NOT_SUPPERT_'=>'The system does not support',
+	'_CACHE_TYPE_INVALID_'=>'Unable to load the cache type',
+	'_FILE_NOT_WRITEABLE_'=>'Directory (file) is not writable',
+	'_METHOD_NOT_EXIST_'=>'The method you requested  does not exist!',
+	'_CLASS_NOT_EXIST_'=>'Instantiating a class does not exist！',
+	'_CLASS_CONFLICT_'=>'Class name conflicts',
+	'_TEMPLATE_ERROR_'=>'Template Engine errors',
+	'_CACHE_WRITE_ERROR_'=>'Cache file write failed!',
+	'_TAGLIB_NOT_EXIST_'=>'Tag library is not defined',
+	'_OPERATION_FAIL_'=>'Operation failed!',
+	'_OPERATION_SUCCESS_'=>'Operation successed!',
+	'_SELECT_NOT_EXIST_'=>'Record does not exist!',
+	'_EXPRESS_ERROR_'=>'Expression errors',
+	'_TOKEN_ERROR_'=>'Form\'s token errors',
+	'_RECORD_HAS_UPDATE_'=>'Record has been updated',
+	'_NOT_ALLOW_PHP_'=>'PHP codes are not allowed in the template',
+	'_PARAM_ERROR_'=>'Parameter error or undefined',
+);
\ No newline at end of file