diff --git a/landlords-client/src/main/java/org/nico/ratel/landlords/client/SimpleClient.java b/landlords-client/src/main/java/org/nico/ratel/landlords/client/SimpleClient.java
index 160db57..32e525a 100644
--- a/landlords-client/src/main/java/org/nico/ratel/landlords/client/SimpleClient.java
+++ b/landlords-client/src/main/java/org/nico/ratel/landlords/client/SimpleClient.java
@@ -4,14 +4,17 @@
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.util.List;
+import java.util.Locale;
 import java.util.Objects;
 
 import org.nico.noson.Noson;
 import org.nico.noson.entity.NoType;
+import org.nico.noson.util.string.StringUtils;
 import org.nico.ratel.landlords.client.entity.User;
 import org.nico.ratel.landlords.client.proxy.ProtobufProxy;
 import org.nico.ratel.landlords.client.proxy.WebsocketProxy;
 import org.nico.ratel.landlords.features.Features;
+import org.nico.ratel.landlords.helper.I18nHelper;
 import org.nico.ratel.landlords.print.SimplePrinter;
 import org.nico.ratel.landlords.print.SimpleWriter;
 import org.nico.ratel.landlords.utils.StreamUtils;
@@ -28,6 +31,8 @@ public class SimpleClient {
 
 	public static String protocol = "pb";
 
+	public static String language;
+
 	private final static String[] serverAddressSource = new String[]{
 			"https://raw.githubusercontent.com/ainilili/ratel/master/serverlist.json",			//Source
 			"https://cdn.jsdelivr.net/gh/ainilili/ratel@master/serverlist.json",				//CN CDN
@@ -50,23 +55,34 @@ public static void main(String[] args) throws InterruptedException, IOException,
 					if (args[index].equalsIgnoreCase("-ptl") || args[index].equalsIgnoreCase("-protocol")) {
 						protocol = args[index + 1];
 					}
+					if (args[index].equalsIgnoreCase("-lang") || args[index].equalsIgnoreCase("-language")) {
+						language = args[index + 1];
+					}
 				}
 			}
 		}
+
+		if (StringUtils.isBlank(language)) {
+			I18nHelper.enable();
+		} else {
+			Locale locale = getLocale(language);
+			I18nHelper.enable(locale);
+		}
+
 		if (serverAddress == null) {
 			List<String> serverAddressList = getServerAddressList();
 			if (serverAddressList == null || serverAddressList.size() == 0) {
 				throw new RuntimeException("Please use '-host' to setting server address.");
 			}
 
-			SimplePrinter.printNotice("Please select a server:");
+			SimplePrinter.printTranslate("pls_select_srv");
 			for (int i = 0; i < serverAddressList.size(); i++) {
 				SimplePrinter.printNotice((i + 1) + ". " + serverAddressList.get(i));
 			}
 			int serverPick = Integer.parseInt(SimpleWriter.write(User.INSTANCE.getNickname(), "option"));
 			while (serverPick < 1 || serverPick > serverAddressList.size()) {
 				try {
-					SimplePrinter.printNotice("The server address does not exist!");
+					SimplePrinter.printTranslate("srv_addr_not_exist");
 					serverPick = Integer.parseInt(SimpleWriter.write(User.INSTANCE.getNickname(), "option"));
 				} catch (NumberFormatException ignore) {}
 			}
@@ -91,10 +107,23 @@ private static List<String> getServerAddressList() {
 				String serverInfo = StreamUtils.convertToString(new URL(serverAddressSource));
 				return Noson.convert(serverInfo, new NoType<List<String>>() {});
 			} catch (IOException e) {
-				SimplePrinter.printNotice("Try connected " + serverAddressSource + " failed: " + e.getMessage());
+				SimplePrinter.printTranslate("try_connect_%s_failed_%s", serverAddressSource, e.getMessage());
 			}
 		}
 		return null;
 	}
 
+	private static Locale getLocale(String langCode) {
+		switch (langCode) {
+			case "zh":
+			case "zh_CN":
+				return Locale.SIMPLIFIED_CHINESE;
+			case "en":
+			case "en_US":
+					return Locale.US;
+			default:
+				System.out.println("[warning] not supported language code: " + langCode + ", set to en_US");
+				return Locale.US;
+		}
+	}
 }
diff --git a/landlords-common/src/main/java/org/nico/ratel/landlords/helper/I18nHelper.java b/landlords-common/src/main/java/org/nico/ratel/landlords/helper/I18nHelper.java
new file mode 100644
index 0000000..eb1418e
--- /dev/null
+++ b/landlords-common/src/main/java/org/nico/ratel/landlords/helper/I18nHelper.java
@@ -0,0 +1,104 @@
+package org.nico.ratel.landlords.helper;
+
+import java.nio.charset.StandardCharsets;
+import java.util.Locale;
+import java.util.MissingResourceException;
+import java.util.ResourceBundle;
+
+
+public class I18nHelper {
+
+    private I18nHelper() {
+    }
+
+    private static final String I18N_BUNDLE_NAME = "messages";
+
+    private static ResourceBundle messageBundle;
+
+    private static volatile boolean enabled = false;
+
+    /**
+     * 启用并加载国际化信息，语言地区使用系统默认
+     */
+    public static void enable() {
+        enable(Locale.getDefault());
+    }
+
+    /**
+     * 启用并加载国际化，指定语言地区
+     *
+     * @param locale 语言地区
+     */
+    public static void enable(Locale locale) {
+        if (enabled) {
+            System.err.println("[warning] i18n resource has already loaded.");
+            return;
+        }
+        try {
+            messageBundle = ResourceBundle.getBundle(I18N_BUNDLE_NAME, locale);
+            if (locale != messageBundle.getLocale()) {
+                System.err.printf("[warning] missing i18n resource for %s, set locale to %s\n",
+                        locale, messageBundle.getLocale());
+            }
+        } catch (Exception e) {
+            System.err.println("[error] load i18n resource error, exception: " + e.getMessage());
+            throw e;
+        }
+        I18nHelper.enabled = true;
+    }
+
+    /**
+     * 更新并重新加载国际化资源
+     *
+     * @param locale 语言地区
+     */
+    public static void refresh(Locale locale) {
+        if (!enabled) {
+            throw new IllegalStateException("i18n not enabled!");
+        }
+        ResourceBundle bundle;
+        try {
+            bundle = ResourceBundle.getBundle(I18N_BUNDLE_NAME, locale);
+            if (locale != bundle.getLocale()) {
+                throw new IllegalStateException("i18n resource of " + locale + " not found");
+            }
+        } catch (Exception e) {
+            if (e instanceof IllegalArgumentException) {
+                throw e;
+            }
+            throw new RuntimeException("load i18n resource of " + locale + "failed, exception: " + e.getMessage());
+        }
+        messageBundle = bundle;
+    }
+
+    /**
+     * 翻译文本
+     * <p>支持格式化，格式化方式采用String.format(format, Object...args)<p/>
+     * <p>不在字典内的key将原样显示</p>
+     *
+     * @param key  待翻译语言key
+     * @param args 参数
+     */
+    public static String translate(String key, Object... args) {
+        if (!enabled) {
+            return format(key, args);
+        }
+        try {
+            String t = messageBundle.getString(key);
+            return format(new String(t.getBytes(StandardCharsets.ISO_8859_1), StandardCharsets.UTF_8), args);
+        } catch (MissingResourceException e) {
+            return format(key, args);
+        }
+    }
+
+    /**
+     * 获取当前地区语言
+     */
+    public static Locale getCurrentLocale() {
+        return messageBundle == null ? null : messageBundle.getLocale();
+    }
+
+    private static String format(String template, Object... args) {
+        return String.format(template, args);
+    }
+}
diff --git a/landlords-common/src/main/java/org/nico/ratel/landlords/print/SimplePrinter.java b/landlords-common/src/main/java/org/nico/ratel/landlords/print/SimplePrinter.java
index 5127458..3170f0b 100644
--- a/landlords-common/src/main/java/org/nico/ratel/landlords/print/SimplePrinter.java
+++ b/landlords-common/src/main/java/org/nico/ratel/landlords/print/SimplePrinter.java
@@ -7,6 +7,7 @@
 import java.util.HashMap;
 
 import org.nico.ratel.landlords.entity.Poker;
+import org.nico.ratel.landlords.helper.I18nHelper;
 import org.nico.ratel.landlords.helper.PokerHelper;
 
 public class SimplePrinter {
@@ -22,6 +23,10 @@ public static void printNotice(String msg) {
 		System.out.println(msg);
 	}
 
+	public static void printTranslate(String key, Object... args) {
+		System.out.println(I18nHelper.translate(key, args));
+	}
+
 	public static void printNotice(String msgKey, String locale) {
 		//TODO : read locale
 		Map<String, Map<String, String>> map = new HashMap<>();
diff --git a/landlords-common/src/main/resources/messages_en_US.properties b/landlords-common/src/main/resources/messages_en_US.properties
new file mode 100644
index 0000000..f2f3d2c
--- /dev/null
+++ b/landlords-common/src/main/resources/messages_en_US.properties
@@ -0,0 +1,3 @@
+pls_select_srv=Please select a server:
+srv_addr_not_exist=The server address does not exist!
+try_connect_%s_failed_%s=Try connected %s failed: %s
\ No newline at end of file
diff --git a/landlords-common/src/main/resources/messages_zh_CN.properties b/landlords-common/src/main/resources/messages_zh_CN.properties
new file mode 100644
index 0000000..0e29766
--- /dev/null
+++ b/landlords-common/src/main/resources/messages_zh_CN.properties
@@ -0,0 +1,3 @@
+pls_select_srv=请选择一个服务器:
+srv_addr_not_exist=服务器地址不存在！
+try_connect_%s_failed_%s=尝试连接服务器 %s 失败，原因： %s
\ No newline at end of file