diff --git a/lang.php b/lang.php
index 890a559..e1a8150 100755
--- a/lang.php
+++ b/lang.php
@@ -26,7 +26,8 @@
     "fr" => "Français",
     "it" => "Italiano",
     "es" => "Español",
-    "nl" => "Nederlands"
+    "nl" => "Nederlands",
+    "zh" => "中文"
   ];
 
   // always load en base
diff --git a/zh.php b/zh.php
new file mode 100644
index 0000000..8f1c3e5
--- /dev/null
+++ b/zh.php
@@ -0,0 +1,123 @@
+<?php
+/* μlogger
+ *
+ * Copyright(C) 2017 Bartek Fabiszewski (www.fabiszewski.net)
+ *
+ * This 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; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+// default language for translations
+
+// strings only used in setup
+$langSetup["dbconnectfailed"] = "數據庫鏈接失敗";
+$langSetup["serversaid"] = "服務器說： %s"; // substitutes server error message
+$langSetup["checkdbsettings"] = "請檢查cofig.php檔案中的數據庫配置項。";
+$langSetup["dbqueryfailed"] = "數據庫查詢失敗。";
+$langSetup["dbtablessuccess"] = "數據庫表創建成功。";
+$langSetup["setupuser"] = "現在請建立您的µlogger賬戶。";
+$langSetup["congratulations"] = "恭喜！";
+$langSetup["setupcomplete"] = "設置已經完成！您可以用您的賬戶在<a href=\"../index.php\">主頁</a> 登錄了。";
+$langSetup["disablewarn"] = "重要提示！您必須將setup.php中的配置項設置未禁用（false）或着把setup.php從服務器刪掉。";
+$langSetup["disabledesc"] = "如果不處理setup.php將會留下巨大的安全漏洞。任何人都可以像你剛剛做的那樣，清除數據庫、設置新用戶。請務必刪除setup.php或通過把 %s 的值設置會 %s 來禁用它。"; // substitutes variable name and value
+$langSetup["setupfailed"] = "很不幸，出現了一些錯誤。您可以在網頁服務器的日志中獲得更多信息。";
+$langSetup["welcome"] = "歡迎來到µlogger!";
+$langSetup["disabledwarn"] = "由於安全原因這個腳本默認時禁用的。要啟用它，您可以通過編輯 'scripts/setup.php' 把檔案開始部分 %s 的值設置為 %s。"; // substitutes variable name and value
+$langSetup["lineshouldread"] = "行： %s 應該修改為： %s";
+$langSetup["passfuncwarn"] = "您的PHP版本不支援PHP 5.5自帶的密碼函數。您需要引入額外的密碼適配庫。";
+$langSetup["passfunchack"] = "請編輯 'helpers/user.php' 這個檔案，取消引入'helpers/password.php'這一行的注釋。";
+$langSetup["dorestart"] = "完成後請重新執行本腳本。";
+$langSetup["createconfig"] = "請在項目根目錄創建 'config.php' 檔案。 您可以將'config.default.php'複製為'config.php'。請記得修改裡面的數據庫配置和其他你想要修改的項目。";
+$langSetup["nodbsettings"] = "您必須在'config.php' file (%s) 中提供你的數據庫鏈接資料。"; // substitutes variable names
+$langSetup["scriptdesc"] = "這個腳本將會為ulogger建起其所需的數據庫表格(%s)。 它們將被建立在數據庫 %s 中。 請注意，如果這些表格已經存在則它們會被刪除並重新創建，它們的內容也會隨之被刪除。"; // substitutes table names and db name
+$langSetup["scriptdesc2"] = "執行完成後腳本會請您新建一個µlogger的賬戶，您需要為其設置用戶名和密碼。";
+$langSetup["startbutton"] = "開始執行";
+$langSetup["restartbutton"] = "重新啟動";
+
+
+// application strings
+$lang["title"] = "• μlogger •";
+$lang["private"] = "請登錄";
+$lang["authfail"] = "賬號或密碼錯誤";
+$lang["user"] = "用戶";
+$lang["track"] = "路徑";
+$lang["latest"] = "最新位置";
+$lang["autoreload"] = "自動刷新";
+$lang["reload"] = "刷新";
+$lang["export"] = "導出路徑";
+$lang["chart"] = "海拔圖表";
+$lang["close"] = "關閉";
+$lang["time"] = "時間";
+$lang["speed"] = "速度";
+$lang["accuracy"] = "精度";
+$lang["altitude"] = "海拔";
+$lang["ttime"] = "總時間";
+$lang["aspeed"] = "平均速度";
+$lang["tdistance"] = "總距離";
+$lang["pointof"] = "第 %d / %d 個點"; // e.g. Point 3 of 10
+$lang["summary"] = "行程總結";
+$lang["suser"] = "選擇用戶";
+$lang["logout"] = "登出";
+$lang["login"] = "登錄";
+$lang["username"] = "用戶名";
+$lang["password"] = "密碼";
+$lang["language"] = "語言";
+$lang["newinterval"] = "請輸入新的刷新頻率（秒）";
+$lang["api"] = "地圖接口";
+$lang["units"] = "單位";
+$lang["metric"] = "公制";
+$lang["imperial"] = "英制/美國";
+$lang["adminmenu"] = "管理員";
+$lang["passwordrepeat"] = "請再次輸入密碼";
+$lang["passwordenter"] = "請輸入密碼";
+$lang["usernameenter"] = "請輸入用戶名";
+$lang["adduser"] = "添加用戶";
+$lang["userexists"] = "用戶離開了。";
+$lang["cancel"] ="取消";
+$lang["submit"] = "提交";
+$lang["oldpassword"] = "舊密碼";
+$lang["newpassword"] = "新密碼";
+$lang["newpasswordrepeat"] = "請再次輸入密碼";
+$lang["changepass"] = "修改密碼";
+$lang["gps"] = "GPS";
+$lang["network"] = "網絡";
+$lang["deluser"] = "刪除用戶";
+$lang["edituser"] = "修改用戶";
+$lang["servererror"] = "服務器發生錯誤";
+$lang["allrequired"] = "所有欄目均為必填";
+$lang["passnotmatch"] = "密碼不匹配";
+$lang["actionsuccess"] = "完成";
+$lang["actionfailure"] = "失敗";
+$lang["userdelwarn"] = "注意！\n\n您即將永久刪除用戶 %s 以及他/她的所有路徑和位置資料。\n\n確定刪除嗎？"; // substitutes user login
+$lang["editinguser"] = "您正在編輯用戶 %s"; // substitutes user login
+$lang["selfeditwarn"] = "您不能用此工具編輯您的用戶";
+$lang["apifailure"] = "對不起，無法加載 %s 的接口"; // substitures api name (gmaps or openlayers)
+$lang["trackdelwarn"] = "注意！\n\n您即將刪除路徑%s和此路徑的所有位置。\n\n確定刪除嗎？"; // substitutes track name
+$lang["editingtrack"] = "您正在編輯路徑%s"; // substitutes track name
+$lang["deltrack"] = "刪除路徑";
+$lang["trackname"] = "路徑名稱";
+$lang["edittrack"] = "修改路徑";
+$lang["passlenmin"] = "密碼至少要有 %d 位哦"; // substitutes password minimum length
+$lang["passrules"][1] = "密碼至少有一個小寫字母和一個大寫字母哦";
+$lang["passrules"][2] = "密碼至少有一個數字、一個小寫字母和一個大寫字母哦";
+$lang["passrules"][3] = "密碼至少有一個數字、一個小寫字母、一個大寫字母和一個符號哦";
+$lang["owntrackswarn"] = "您只能編輯自己的路徑";
+$lang["gmauthfailure"] = "Google Maps API密鑰似乎有問題哦";
+$lang["gmapilink"] = "您可以在<a target=\"_blank\" href=\"https://developers.google.com/maps/documentation/javascript/get-api-key\">Google webpage</a>獲取Maps API密鑰的相關諮詢。";
+$lang["import"] = "導入路徑";
+$lang["iuploadfailure"] = "上傳失敗";
+$lang["iparsefailure"] = "解析失敗";
+$lang["idatafailure"] = "在上傳的檔案中未發現路徑數據";
+$lang["isizefailure"] = "上傳的檔案大小不能超過 %d 比特哦"; // substitutes number of bytes
+$lang["imultiple"] = "恭喜，%d 條路徑已導入"; // substitutes number of imported tracks
+?>