diff --git a/language/zh_CN/install.lang.php b/language/zh_CN/install.lang.php
new file mode 100644
index 000000000..c9ed574ea
--- /dev/null
+++ b/language/zh_CN/install.lang.php
@@ -0,0 +1,74 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based picture gallery                                  |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008-2009 Piwigo Team                  http://piwigo.org |
+// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
+// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
+// +-----------------------------------------------------------------------+
+// | This program is free software; you can redistribute it and/or modify  |
+// | it under the terms of the GNU General Public License as published by  |
+// | the Free Software Foundation                                          |
+// |                                                                       |
+// | This program is distributed in the hope that it will be useful, but   |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
+// | General Public License for more details.                              |
+// |                                                                       |
+// | You should have received a copy of the GNU General Public License     |
+// | along with this program; if not, write to the Free Software           |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA.                                                                  |
+// +-----------------------------------------------------------------------+
+
+$lang['Installation'] = '安装';
+$lang['Initial_config'] = '基本设置';
+$lang['Default_lang'] = '图库默认语言';
+$lang['step1_title'] = '数据库设置';
+$lang['step2_title'] = '管理员帐户设置';
+$lang['Start_Install'] = '开始安装';
+$lang['reg_err_mail_address'] = '邮箱地址格式 xxx@yyy.eee (例 : jack@altern.org)';
+
+$lang['install_webmaster'] = '管理员';
+$lang['install_webmaster_info'] = '所有用户都能看到此帐户。必须提供此帐户来管理网站';
+
+$lang['step1_confirmation'] = '输入参数正确';
+$lang['step1_err_db'] = '服务器连接正常，但是无法连接到数据库';
+$lang['step1_err_server'] = '无法连接到服务器';
+
+$lang['step1_host'] = 'MySQL主机地址';
+$lang['step1_host_info'] = 'localhost, sql.multimania.com, toto.freesurf.fr';
+$lang['step1_user'] = '用户';
+$lang['step1_user_info'] = '主机用户名';
+$lang['step1_pass'] = '密码';
+$lang['step1_pass_info'] = '主机用户密码';
+$lang['step1_database'] = '数据库名称';
+$lang['step1_database_info'] = '在主机设定的数据库名称';
+$lang['step1_prefix'] = '表名称前缀';
+$lang['step1_prefix_info'] = '所有的表名称都加此前缀(有利于数据库管理)';
+$lang['step2_err_login1'] = '请输入网管名';
+$lang['step2_err_login3'] = '网管名不应包含字符 " 和 \'';
+$lang['step2_err_pass'] = '请再次输入密码';
+$lang['install_end_title'] = '安装结束';
+$lang['step2_pwd'] = '密码';
+$lang['step2_pwd_info'] = '请小心保管好此密码，它允许你操作管理板块。';
+$lang['step2_pwd_conf'] = '密码 [ 确认 ]';
+$lang['step2_pwd_conf_info'] = '核实';
+$lang['step1_err_copy'] = '请拷贝短横线之间的粉红色文字并粘贴到位于Piwigo安装目录下的include文件夹里的mysql.inc.php文件中（每行不允许有空格或回车）';
+$lang['install_help'] = '需要帮助？ 请到<a href="%s">Piwigo论坛</a>提出你的问题.';
+$lang['install_end_message'] = '程序配置正确，继续完成下面步骤<br /><br />
+* 请到登录页面并且用网管帐号登录<br />
+* 进入管理页面并会告知如何把图片移到文件夹中。';
+$lang['conf_mail_webmaster'] = '管理员Email地址';
+$lang['conf_mail_webmaster_info'] = '游客通过此Email跟你联系';
+
+$lang['PHP 5 is required'] = '必须PHP 5版本';
+$lang['It appears your webhost is currently running PHP %s.'] = '你主机PHP版本好像是PHP %s.';
+$lang['Piwigo may try to switch your configuration to PHP 5 by creating or modifying a .htaccess file.'] = 'Piwigo试着创建或修改.htaccess文件来转换到PHP 5。';
+$lang['Note you can change your configuration by yourself and restart Piwigo after that.'] = '注意；你也可以自己修改设置PHP然后重新启动Piwigo。';
+$lang['Try to configure PHP 5'] = '试试配置PHP 5';
+$lang['Sorry!'] = '对不起!';
+$lang['Piwigo was not able to configure PHP 5.'] = 'Piwigo不能设置PHP 5.';
+$lang["You may referer to your hosting provider's support and see how you could switch to PHP 5 by yourself."] = '你应该联系你的主机管理员并向其请教如何设置PHP 5.';
+$lang['Hope to see you back soon.'] = '希望下次再见到你...';
+?>
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