diff --git a/README.md b/README.md
index cee6763..13de605 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@
 - **[必须]** 插件本体基于 [Spigot-API](https://hub.spigotmc.org/stash/projects/SPIGOT) 、 [BukkitAPI](http://bukkit.org/) 实现。
 - **[自带]** 插件功能基于 [EasyPlugin](https://github.com/CarmJos/EasyPlugin) 实现。
 - **[自带]** 数据功能基于 [EasySQL](https://github.com/CarmJos/EasySQL) 实现。
- 
+
 详细依赖列表可见 [Dependencies](https://github.com/CarmJos/timereward/network/dependencies) 。
 
 ## 插件指令
@@ -39,6 +39,22 @@
 
 ```
 
+## 插件变量
+
+```text
+# %TimeReward_time%
+- 得到玩家总共的在线时长(秒)。
+
+# %TimeReward_reward_<奖励ID>%
+- 得到某个奖励配置的名称。
+
+# %TimeReward_claimed_<奖励ID>%
+- 得到玩家是否已经领取了某个奖励。
+- * 也可以代表玩家是否可以领取某个奖励 
+- * 因为一旦可以领取就会自动领取，变为已领取状态
+
+```
+
 ## 配置文件
 
 ### 插件配置文件 ([config.yml](src/main/resources/config.yml))
diff --git a/src/main/java/cc/carm/plugin/timereward/Main.java b/src/main/java/cc/carm/plugin/timereward/Main.java
index 2b77b76..d2c0586 100644
--- a/src/main/java/cc/carm/plugin/timereward/Main.java
+++ b/src/main/java/cc/carm/plugin/timereward/Main.java
@@ -2,8 +2,10 @@ package cc.carm.plugin.timereward;
 
 import cc.carm.lib.easyplugin.EasyPlugin;
 import cc.carm.lib.easyplugin.i18n.EasyPluginMessageProvider;
+import cc.carm.lib.easyplugin.utils.MessageUtils;
 import cc.carm.plugin.timereward.configuration.PluginConfig;
 import cc.carm.plugin.timereward.database.DataManager;
+import cc.carm.plugin.timereward.hooker.PAPIExpansion;
 import cc.carm.plugin.timereward.listener.UserListener;
 import cc.carm.plugin.timereward.manager.ConfigManager;
 import cc.carm.plugin.timereward.manager.RewardManager;
@@ -57,6 +59,13 @@ public class Main extends EasyPlugin {
 
         log("注册指令...");
 
+        if (MessageUtils.hasPlaceholderAPI()) {
+            log("注册变量...");
+            new PAPIExpansion(this).register();
+        } else {
+            log("检测到未安装PlaceholderAPI，跳过变量注册。");
+        }
+
         return true;
     }
 
diff --git a/src/main/java/cc/carm/plugin/timereward/hooker/PAPIExpansion.java b/src/main/java/cc/carm/plugin/timereward/hooker/PAPIExpansion.java
new file mode 100644
index 0000000..7816c5d
--- /dev/null
+++ b/src/main/java/cc/carm/plugin/timereward/hooker/PAPIExpansion.java
@@ -0,0 +1,88 @@
+package cc.carm.plugin.timereward.hooker;
+
+import cc.carm.plugin.timereward.TimeRewardAPI;
+import cc.carm.plugin.timereward.data.RewardContents;
+import cc.carm.plugin.timereward.data.TimeRewardUser;
+import me.clip.placeholderapi.expansion.PlaceholderExpansion;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class PAPIExpansion extends PlaceholderExpansion {
+
+    private static final List<String> PLACEHOLDERS = Arrays.asList(
+            "%TimeReward_time%",
+            "%TimeReward_reward_<奖励ID>%",
+            "%TimeReward_claimed_<奖励ID>%"
+    );
+
+    private final JavaPlugin plugin;
+
+    public PAPIExpansion(JavaPlugin plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public @NotNull List<String> getPlaceholders() {
+        return PLACEHOLDERS;
+    }
+
+    @Override
+    public boolean canRegister() {
+        return true;
+    }
+
+    @Override
+    public @NotNull String getAuthor() {
+        return plugin.getDescription().getAuthors().toString();
+    }
+
+    @Override
+    public @NotNull String getIdentifier() {
+        return plugin.getDescription().getName();
+    }
+
+    @Override
+    public @NotNull String getVersion() {
+        return plugin.getDescription().getVersion();
+    }
+
+    @Override
+    public String onPlaceholderRequest(Player player, @NotNull String identifier) {
+        if (player == null) return "加载中...";
+        String[] args = identifier.split("_");
+
+        if (args.length < 1) {
+            return "Error Params";
+        }
+
+        TimeRewardUser user = TimeRewardAPI.getUserManager().get(player);
+
+        switch (args[0].toLowerCase()) {
+            case "time": {
+                return Long.toString(user.getAllSeconds());
+            }
+            case "reward": {
+                if (args.length < 2) return "请填写奖励ID";
+                String rewardName = args[1];
+                RewardContents contents = TimeRewardAPI.getRewardManager().getReward(rewardName);
+                if (contents == null) return "奖励不存在";
+                return contents.getDisplayName();
+            }
+            case "claimed": {
+                if (args.length < 2) return "请填写奖励ID";
+                return Boolean.toString(user.isClaimed(args[1]));
+            }
+            case "version": {
+                return getVersion();
+            }
+            default: {
+                return "参数错误";
+            }
+        }
+    }
+
+}
diff --git a/src/main/java/cc/carm/plugin/timereward/manager/RewardManager.java b/src/main/java/cc/carm/plugin/timereward/manager/RewardManager.java
index 3be373d..66b673d 100644
--- a/src/main/java/cc/carm/plugin/timereward/manager/RewardManager.java
+++ b/src/main/java/cc/carm/plugin/timereward/manager/RewardManager.java
@@ -73,6 +73,10 @@ public class RewardManager {
         return new HashMap<>(getRewardsMap());
     }
 
+    public RewardContents getReward(String rewardID) {
+        return getRewardsMap().get(rewardID);
+    }
+
     protected HashMap<String, RewardContents> getRewardsMap() {
         return PluginConfig.REWARDS.getOptional().orElse(new HashMap<>());
     }
diff --git a/src/main/resources/config.yml b/src/main/resources/config.yml
index b44ce7f..969f8d4 100644
--- a/src/main/resources/config.yml
+++ b/src/main/resources/config.yml
@@ -31,7 +31,7 @@ rewards:
 
     # 奖励的显示名称，可以是任意字符串
     # 可以在commands 中使用 %(name) 来获取该奖励的名称
-    # 也可以使用变量 %TimeReward_<奖励ID>_name% 来获取对应奖励的名称
+    # 也可以使用变量 %TimeReward_reward_<奖励ID>% 来获取对应奖励的名称
     name: "&f[初级奖励] &e总在线时长 2小时"
 
     # 该奖励自动领取需要的在线时长，单位为秒