diff --git a/pom.xml b/pom.xml
index 4e3e1cb..b165c94 100644
--- a/pom.xml
+++ b/pom.xml
@@ -337,8 +337,6 @@
                     <links>
                         <link>https://javadoc.io/doc/org.jetbrains/annotations/</link>
                         <link>https://hub.spigotmc.org/javadocs/bukkit/</link>
-                        <link>https://carmjos.github.io/EasyPlugin/</link>
-                        <link>https://carmjos.github.io/MineConfiguration/</link>
                     </links>
                     <detectJavaApiLink>true</detectJavaApiLink>
                     <encoding>UTF-8</encoding>
diff --git a/src/main/java/cc/carm/plugin/userprefix/command/UserCommand.java b/src/main/java/cc/carm/plugin/userprefix/command/UserCommand.java
index a33e080..796e8e9 100644
--- a/src/main/java/cc/carm/plugin/userprefix/command/UserCommand.java
+++ b/src/main/java/cc/carm/plugin/userprefix/command/UserCommand.java
@@ -1,15 +1,24 @@
 package cc.carm.plugin.userprefix.command;
 
+import cc.carm.plugin.userprefix.UserPrefixAPI;
 import cc.carm.plugin.userprefix.conf.PluginMessages;
+import cc.carm.plugin.userprefix.manager.PrefixManager;
 import cc.carm.plugin.userprefix.ui.PrefixSelectGUI;
 import org.bukkit.Bukkit;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
-public class UserCommand implements CommandExecutor {
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+public class UserCommand implements CommandExecutor, TabCompleter {
 
 
     @Override
@@ -32,5 +41,41 @@ public class UserCommand implements CommandExecutor {
         return true;
     }
 
+    @Nullable
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] strings) {
+        List<String> completions = new ArrayList<>();
+
+        if (sender instanceof Player) {
+            if (strings.length == 1) {
+                // 补全 group 名称
+                Set<String> groups = UserPrefixAPI.getPrefixManager().getGroups();
+                String input = strings[0].toLowerCase();
+                completions.addAll(groups.stream()
+                        .filter(g -> g.toLowerCase().startsWith(input))
+                        .collect(Collectors.toList()));
+            }
+        } else {
+            // 控制台
+            if (strings.length == 1) {
+                // 补全在线玩家名
+                String input = strings[0].toLowerCase();
+                completions.addAll(Bukkit.getOnlinePlayers().stream()
+                        .map(Player::getName)
+                        .filter(name -> name.toLowerCase().startsWith(input))
+                        .collect(Collectors.toList()));
+            } else if (strings.length == 2) {
+                // 补全 group 名称
+                Set<String> groups = UserPrefixAPI.getPrefixManager().getGroups();
+                String input = strings[1].toLowerCase();
+                completions.addAll(groups.stream()
+                        .filter(g -> g.toLowerCase().startsWith(input))
+                        .collect(Collectors.toList()));
+            }
+        }
+
+        return completions;
+    }
+
 
 }
\ No newline at end of file
diff --git a/src/main/java/cc/carm/plugin/userprefix/manager/PrefixManager.java b/src/main/java/cc/carm/plugin/userprefix/manager/PrefixManager.java
index da463b8..47076d2 100644
--- a/src/main/java/cc/carm/plugin/userprefix/manager/PrefixManager.java
+++ b/src/main/java/cc/carm/plugin/userprefix/manager/PrefixManager.java
@@ -26,6 +26,7 @@ public class PrefixManager {
 
     protected @NotNull Map<String, PrefixConfig> prefixes = new HashMap<>();
     protected PrefixConfig defaultPrefix;
+    
 
     public int loadPrefixes() {
         loadDefaultPrefix();
diff --git a/src/main/resources/i18n/en_US/example-prefix.yml b/src/main/resources/i18n/en_US/example-prefix.yml
index 09718f2..8f1045a 100644
--- a/src/main/resources/i18n/en_US/example-prefix.yml
+++ b/src/main/resources/i18n/en_US/example-prefix.yml
@@ -24,6 +24,11 @@ period: -1
 # At TabList : the larger is displayed at the top
 weight: 1
 
+# Group [Unnecessary]
+# Used to group prefixes, players can use /prefix <group> to view prefixes in the corresponding group
+# If not configured, it means the prefix is not in any group
+group: vip
+
 # Permission [Unnecessary]
 # If there is no permission for detection, everyone can use it,
 # which means there is no need to configure "itemNoPermission"
diff --git a/src/main/resources/i18n/es_ES/ejemplo-prefijo.yml b/src/main/resources/i18n/es_ES/ejemplo-prefijo.yml
index 179b583..18d9a72 100644
--- a/src/main/resources/i18n/es_ES/ejemplo-prefijo.yml
+++ b/src/main/resources/i18n/es_ES/ejemplo-prefijo.yml
@@ -23,6 +23,11 @@ period: -1
 # En TabList : el más grande se muestra en la parte superior
 weight: 1
 
+# Grupo [Innecesario]
+# Se utiliza para agrupar prefijos, los jugadores pueden usar /prefix <group> para ver prefijos en el grupo correspondiente
+# Si no se configura, significa que el prefijo no está en ningún grupo
+group: vip
+
 # Permisos [Innecesario]
 # Si no hay permiso para la detección, todo el mundo puede utilizarlo,
 # lo que significa que no es necesario configurar "itemNoPermission"
diff --git a/src/main/resources/prefixes/example-prefix.yml b/src/main/resources/prefixes/example-prefix.yml
index e479393..61d31d8 100644
--- a/src/main/resources/prefixes/example-prefix.yml
+++ b/src/main/resources/prefixes/example-prefix.yml
@@ -25,6 +25,11 @@ period: -1
 # 在TabList中，显示顺序可以在 config.yml 中自定义
 weight: 1
 
+# 分组 [非必须]
+# 用于将前缀分组，玩家可以通过 /prefix <group> 查看对应分组的前缀
+# 若不配置则代表不在任何分组中
+group: vip
+
 
 # 检测的权限 [非必须]
 # 如果没有就是人人都能用，也代表不用配置“itemNoPermission”了(因为压根不可能显示没权限时候的物品)