diff --git a/pom.xml b/pom.xml
index afd5935..3a2390a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,7 +1,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
-	<groupId>RocketJump</groupId>
+	<groupId>cn.CityCraft</groupId>
 	<artifactId>RocketJump</artifactId>
 	<version>0.0.2-SNAPSHOT</version>
 	<name>RocketJump</name>
diff --git a/src/cn/citycraft/RocketJump/utils/VersionChecker.java b/src/cn/citycraft/RocketJump/utils/VersionChecker.java
new file mode 100644
index 0000000..044411d
--- /dev/null
+++ b/src/cn/citycraft/RocketJump/utils/VersionChecker.java
@@ -0,0 +1,112 @@
+package cn.citycraft.RocketJump.utils;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URL;
+
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.plugin.Plugin;
+
+import com.google.common.base.Charsets;
+
+/**
+ * 自动更新类
+ * 
+ * @author 蒋天蓓
+ *         2015年8月14日下午4:01:15
+ */
+public class VersionChecker implements Listener {
+	Plugin plugin;
+	public String checkurl = "https://coding.net/u/502647092/p/%s/git/raw/%s/src/plugin.yml";
+	public String branch = "master";
+
+	/**
+	 * @param plugin
+	 *            - 插件
+	 */
+	public VersionChecker(Plugin plugin) {
+		this.plugin = plugin;
+		plugin.getServer().getPluginManager().registerEvents(this, plugin);
+		this.versioncheck(null);
+	}
+
+	/**
+	 * @param plugin
+	 *            - 插件
+	 * @param branch
+	 *            - 分支名称
+	 */
+	public VersionChecker(Plugin plugin, String branch) {
+		this.plugin = plugin;
+		plugin.getServer().getPluginManager().registerEvents(this, plugin);
+		this.checkurl = branch;
+		this.versioncheck(null);
+	}
+
+	/**
+	 * 获取插件更新链接
+	 * 
+	 * @param pluginName
+	 *            - 插件名称
+	 * @param branch
+	 *            - 插件分支
+	 * @return 更新链接
+	 */
+	public String getCheckUrl(String pluginName, String branch) {
+		return String.format(checkurl, pluginName, branch);
+	}
+
+	@EventHandler
+	public void onPlayerJoin(PlayerJoinEvent e) {
+		if (e.getPlayer().isOp()) {
+			this.versioncheck(e.getPlayer());
+		}
+	}
+
+	/**
+	 * 开始更新
+	 * 
+	 * @param player
+	 *            - 获取更新的玩家(null则默认为控制台)
+	 */
+	public void versioncheck(final Player player) {
+		Bukkit.getScheduler().runTaskAsynchronously(plugin, new Runnable() {
+			@Override
+			public void run() {
+				String readURL = getCheckUrl(plugin.getName(), branch);
+				FileConfiguration config;
+				String currentVersion = plugin.getDescription().getVersion();
+				try {
+					URL url = new URL(readURL);
+					BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream(), Charsets.UTF_8));
+					config = YamlConfiguration.loadConfiguration(br);
+					String newVersion = config.getString("version");
+					br.close();
+					if (!newVersion.equals(currentVersion)) {
+						String[] msg = new String[] {
+								ChatColor.GREEN + plugin.getName() + " 插件最新版本 v" + newVersion,
+								ChatColor.RED + "服务器运行版本: v" + currentVersion,
+								ChatColor.GOLD + "插件更新网站: " + ChatColor.BLUE + plugin.getDescription().getWebsite()
+						};
+						if (player != null) {
+							player.sendMessage(msg);
+						} else {
+							plugin.getServer().getConsoleSender().sendMessage(msg);
+						}
+					}
+				} catch (IOException e) {
+					plugin.getLogger().warning("版本更新检查失败!");
+				}
+			}
+		});
+	}
+
+}