diff --git a/src/main/java/cn/lunadeer/dominion/Cache.java b/src/main/java/cn/lunadeer/dominion/Cache.java
index b62be76..9d4c30a 100644
--- a/src/main/java/cn/lunadeer/dominion/Cache.java
+++ b/src/main/java/cn/lunadeer/dominion/Cache.java
@@ -31,11 +31,14 @@ public class Cache {
 
     /**
      * 从数据库加载所有领地
+     * 如果idToLoad为null，则加载所有领地
+     *
+     * @param idToLoad 领地ID
      */
-    public void loadDominions() {
+    public void loadDominions(Integer idToLoad) {
         if (_last_update_dominion.get() + UPDATE_INTERVAL < System.currentTimeMillis()) {
             XLogger.debug("run loadDominionsExecution directly");
-            loadDominionsExecution();
+            loadDominionsExecution(idToLoad);
         } else {
             if (_update_dominion_is_scheduled.get()) return;
             XLogger.debug("schedule loadDominionsExecution");
@@ -43,40 +46,56 @@ public class Cache {
             long delay_tick = (UPDATE_INTERVAL - (System.currentTimeMillis() - _last_update_dominion.get())) / 1000 * 20L;
             Scheduler.runTaskLaterAsync(() -> {
                         XLogger.debug("run loadDominionsExecution scheduled");
-                        loadDominionsExecution();
+                        loadDominionsExecution(idToLoad);
                         _update_dominion_is_scheduled.set(false);
                     },
                     delay_tick);
         }
     }
 
-    private void loadDominionsExecution() {
+    public void loadDominions() {
+        loadDominions(null);
+    }
+
+    private void loadDominionsExecution(Integer idToLoad) {
         Scheduler.runTaskAsync(() -> {
             long start = System.currentTimeMillis();
-            id_dominions = new ConcurrentHashMap<>();
-            world_dominion_tree = new ConcurrentHashMap<>();
-            dominion_children = new ConcurrentHashMap<>();
-            List<DominionDTO> dominions = DominionDTO.selectAll();
-            Map<String, List<DominionDTO>> world_dominions = new HashMap<>();
-            for (DominionDTO d : dominions) {
-                if (!world_dominions.containsKey(d.getWorld())) {
-                    world_dominions.put(d.getWorld(), new ArrayList<>());
+            int count = 0;
+            if (idToLoad == null) {
+                id_dominions = new ConcurrentHashMap<>();
+                world_dominion_tree = new ConcurrentHashMap<>();
+                dominion_children = new ConcurrentHashMap<>();
+                List<DominionDTO> dominions = DominionDTO.selectAll();
+                count = dominions.size();
+                Map<String, List<DominionDTO>> world_dominions = new HashMap<>();
+                for (DominionDTO d : dominions) {
+                    if (!world_dominions.containsKey(d.getWorld())) {
+                        world_dominions.put(d.getWorld(), new ArrayList<>());
+                    }
+                    world_dominions.get(d.getWorld()).add(d);
+                    id_dominions.put(d.getId(), d);
+                    if (!dominion_children.containsKey(d.getParentDomId())) {
+                        dominion_children.put(d.getParentDomId(), new ArrayList<>());
+                    }
+                    dominion_children.get(d.getParentDomId()).add(d.getId());
                 }
-                world_dominions.get(d.getWorld()).add(d);
-                id_dominions.put(d.getId(), d);
-                if (!dominion_children.containsKey(d.getParentDomId())) {
-                    dominion_children.put(d.getParentDomId(), new ArrayList<>());
+                for (Map.Entry<String, List<DominionDTO>> entry : world_dominions.entrySet()) {
+                    world_dominion_tree.put(entry.getKey(), DominionNode.BuildNodeTree(-1, entry.getValue()));
+                }
+            } else {
+                DominionDTO dominion = DominionDTO.select(idToLoad);
+                if (dominion == null && id_dominions.containsKey(idToLoad)) {
+                    id_dominions.remove(idToLoad);
+                } else if (dominion != null) {
+                    id_dominions.put(idToLoad, dominion);
+                    count = 1;
                 }
-                dominion_children.get(d.getParentDomId()).add(d.getId());
-            }
-            for (Map.Entry<String, List<DominionDTO>> entry : world_dominions.entrySet()) {
-                world_dominion_tree.put(entry.getKey(), DominionNode.BuildNodeTree(-1, entry.getValue()));
             }
             BlueMapConnect.render();
             recheckPlayerState = true;
             _last_update_dominion.set(System.currentTimeMillis());
             XLogger.debug("loadDominionsExecution cost: %d ms for %d dominions"
-                    , System.currentTimeMillis() - start, dominions.size());
+                    , System.currentTimeMillis() - start, count);
         });
     }
 
@@ -266,7 +285,7 @@ public class Cache {
         if (player == null) return dominionTree;
         for (List<DominionNode> tree : world_dominion_tree.values()) {
             for (DominionNode node : tree) {
-                if (node.dominion.getOwner().equals(player.getUuid())) {
+                if (node.getDominion().getOwner().equals(player.getUuid())) {
                     dominionTree.add(node);
                 }
             }
diff --git a/src/main/java/cn/lunadeer/dominion/DominionNode.java b/src/main/java/cn/lunadeer/dominion/DominionNode.java
index 34db479..83eeab4 100644
--- a/src/main/java/cn/lunadeer/dominion/DominionNode.java
+++ b/src/main/java/cn/lunadeer/dominion/DominionNode.java
@@ -8,8 +8,16 @@ import javax.annotation.Nullable;
 import java.util.*;
 
 public class DominionNode {
-    public DominionDTO dominion;
-    public List<DominionNode> children = new ArrayList<>();
+    private Integer dominion_id;
+    private List<DominionNode> children = new ArrayList<>();
+
+    public DominionDTO getDominion() {
+        return Cache.instance.getDominion(dominion_id);
+    }
+
+    public List<DominionNode> getChildren() {
+        return children;
+    }
 
     public static List<DominionNode> BuildNodeTree(Integer rootId, List<DominionDTO> dominions) {
         // 映射父节点ID到其子节点列表
@@ -31,7 +39,7 @@ public class DominionNode {
         if (children != null) {
             for (DominionDTO dominion : children) {
                 DominionNode node = new DominionNode();
-                node.dominion = dominion;
+                node.dominion_id = dominion.getId();
                 node.children = buildTree(dominion.getId(), parentToChildrenMap);
                 dominionTree.add(node);
             }
@@ -42,7 +50,7 @@ public class DominionNode {
 
     public static DominionNode getLocInDominionNode(@NotNull List<DominionNode> nodes, @NotNull Location loc) {
         for (DominionNode node : nodes) {
-            if (isInDominion(node.dominion, loc)) {
+            if (isInDominion(node.getDominion(), loc)) {
                 if (node.children.isEmpty()) {
                     return node;
                 } else {
@@ -62,7 +70,7 @@ public class DominionNode {
         if (nodes == null) return null;
         if (nodes.isEmpty()) return null;
         DominionNode dominionNode = getLocInDominionNode(nodes, loc);
-        return dominionNode == null ? null : dominionNode.dominion;
+        return dominionNode == null ? null : dominionNode.getDominion();
     }
 
     public static boolean isInDominion(@Nullable DominionDTO dominion, Location location) {
diff --git a/src/main/java/cn/lunadeer/dominion/dtos/DominionDTO.java b/src/main/java/cn/lunadeer/dominion/dtos/DominionDTO.java
index bef2c40..cd488f4 100644
--- a/src/main/java/cn/lunadeer/dominion/dtos/DominionDTO.java
+++ b/src/main/java/cn/lunadeer/dominion/dtos/DominionDTO.java
@@ -19,10 +19,6 @@ public class DominionDTO {
     private static List<DominionDTO> query(String sql, Object... args) {
         List<DominionDTO> dominions = new ArrayList<>();
         try (ResultSet rs = DatabaseManager.instance.query(sql, args)) {
-            if (sql.contains("UPDATE") || sql.contains("DELETE") || sql.contains("INSERT")) {
-                // 如果是更新操作，重新加载缓存
-                Cache.instance.loadDominions();
-            }
             return getDTOFromRS(rs);
         } catch (SQLException e) {
             DatabaseManager.handleDatabaseError("数据库操作失败: ", e, sql);
@@ -145,6 +141,7 @@ public class DominionDTO {
     public static void delete(DominionDTO dominion) {
         String sql = "DELETE FROM dominion WHERE id = ?;";
         query(sql, dominion.getId());
+        Cache.instance.loadDominions();
     }
 
     private DominionDTO(Integer id, UUID owner, String name, String world,
@@ -228,7 +225,7 @@ public class DominionDTO {
         try (ResultSet rs = updateRow.execute()) {
             List<DominionDTO> dominions = getDTOFromRS(rs);
             if (dominions.size() == 0) return null;
-            Cache.instance.loadDominions();
+            Cache.instance.loadDominions((Integer) id.value);
             return dominions.get(0);
         } catch (SQLException e) {
             DatabaseManager.handleDatabaseError("更新领地信息失败: ", e, updateRow.toString());
diff --git a/src/main/java/cn/lunadeer/dominion/dtos/PlayerPrivilegeDTO.java b/src/main/java/cn/lunadeer/dominion/dtos/PlayerPrivilegeDTO.java
index 331a99c..ff62bab 100644
--- a/src/main/java/cn/lunadeer/dominion/dtos/PlayerPrivilegeDTO.java
+++ b/src/main/java/cn/lunadeer/dominion/dtos/PlayerPrivilegeDTO.java
@@ -12,6 +12,16 @@ import java.util.*;
 
 public class PlayerPrivilegeDTO {
 
+    private static List<PlayerPrivilegeDTO> query(String sql, Object... params) {
+        List<PlayerPrivilegeDTO> players = new ArrayList<>();
+        try (ResultSet rs = DatabaseManager.instance.query(sql, params)) {
+            return getDTOFromRS(rs);
+        } catch (Exception e) {
+            DatabaseManager.handleDatabaseError("查询玩家权限失败: ", e, sql);
+        }
+        return players;
+    }
+
     private static List<PlayerPrivilegeDTO> getDTOFromRS(ResultSet rs) {
         List<PlayerPrivilegeDTO> players = new ArrayList<>();
         if (rs == null) return players;
@@ -90,6 +100,7 @@ public class PlayerPrivilegeDTO {
     public static void delete(UUID player, Integer domID) {
         String sql = "DELETE FROM player_privilege WHERE player_uuid = ? AND dom_id = ?;";
         query(sql, player.toString(), domID);
+        Cache.instance.loadPlayerPrivileges(player);
     }
 
     public static List<PlayerPrivilegeDTO> selectAll() {
@@ -172,18 +183,4 @@ public class PlayerPrivilegeDTO {
         }
     }
 
-    private static List<PlayerPrivilegeDTO> query(String sql, Object... params) {
-        List<PlayerPrivilegeDTO> players = new ArrayList<>();
-        try (ResultSet rs = DatabaseManager.instance.query(sql, params)) {
-            if (sql.contains("UPDATE") || sql.contains("DELETE") || sql.contains("INSERT")) {
-                // 如果是更新操作，重新加载缓存
-                Cache.instance.loadPlayerPrivileges();
-            }
-            return getDTOFromRS(rs);
-        } catch (Exception e) {
-            DatabaseManager.handleDatabaseError("查询玩家权限失败: ", e, sql);
-        }
-        return players;
-    }
-
 }
diff --git a/src/main/java/cn/lunadeer/dominion/tuis/ListDominion.java b/src/main/java/cn/lunadeer/dominion/tuis/ListDominion.java
index 56df9c6..ebf0138 100644
--- a/src/main/java/cn/lunadeer/dominion/tuis/ListDominion.java
+++ b/src/main/java/cn/lunadeer/dominion/tuis/ListDominion.java
@@ -47,11 +47,11 @@ public class ListDominion {
             prefix.append(" | ");
         }
         for (DominionNode node : dominionTree) {
-            TextComponent manage = Button.createGreen("管理").setExecuteCommand("/dominion manage " + node.dominion.getName()).build();
-            TextComponent delete = Button.createRed("删除").setExecuteCommand("/dominion delete " + node.dominion.getName()).build();
-            Line line = Line.create().append(delete).append(manage).append(prefix + node.dominion.getName());
+            TextComponent manage = Button.createGreen("管理").setExecuteCommand("/dominion manage " + node.getDominion().getName()).build();
+            TextComponent delete = Button.createRed("删除").setExecuteCommand("/dominion delete " + node.getDominion().getName()).build();
+            Line line = Line.create().append(delete).append(manage).append(prefix + node.getDominion().getName());
             lines.add(line);
-            lines.addAll(BuildTreeLines(node.children, depth + 1));
+            lines.addAll(BuildTreeLines(node.getChildren(), depth + 1));
         }
         return lines;
     }