diff --git a/latest version/core/bundle.py b/latest version/core/bundle.py
index 01a230c..985d93c 100644
--- a/latest version/core/bundle.py	
+++ b/latest version/core/bundle.py	
@@ -82,11 +82,15 @@ class BundleParser:
     version_tuple_bundles: 'dict[tuple[str, str], ContentBundle]' = {}
 
     def __init__(self) -> None:
-        self.parse()
+        if not self.bundles:
+            self.parse()
 
     def re_init(self) -> None:
         self.bundles.clear()
         self.max_bundle_version.clear()
+        self.next_versions.clear()
+        self.version_tuple_bundles.clear()
+        self.get_bundles.cache_clear()
         self.parse()
 
     def parse(self) -> None:
diff --git a/latest version/core/constant.py b/latest version/core/constant.py
index e98694b..f775f13 100644
--- a/latest version/core/constant.py	
+++ b/latest version/core/constant.py	
@@ -1,6 +1,6 @@
 from .config_manager import Config
 
-ARCAEA_SERVER_VERSION = 'v2.11.3.13'
+ARCAEA_SERVER_VERSION = 'v2.11.3.14'
 ARCAEA_DATABASE_VERSION = 'v2.11.3.13'
 ARCAEA_LOG_DATBASE_VERSION = 'v1.1'
 
diff --git a/latest version/core/init.py b/latest version/core/init.py
index cf0b8c4..affa6f1 100644
--- a/latest version/core/init.py	
+++ b/latest version/core/init.py	
@@ -16,6 +16,7 @@ from core.sql import (Connect, DatabaseMigrator, LogDatabaseMigrator,
                       MemoryDatabase)
 from core.user import UserRegister
 from core.util import try_rename
+from core.world import MapParser
 
 
 class DatabaseInit:
@@ -326,12 +327,11 @@ class FileChecker:
     def check_song_file(self) -> bool:
         '''检查song有关文件并初始化缓存'''
         f = self.check_folder(Config.SONG_FILE_FOLDER_PATH)
-        self.logger.info("Start to initialize song data...")
+        self.logger.info("Initialize song data...")
         try:
             DownloadList.initialize_cache()
             if not Config.SONG_FILE_HASH_PRE_CALCULATE:
                 self.logger.info('Song file hash pre-calculate is disabled.')
-            self.logger.info('Song data initialization is complete!')
         except Exception as e:
             self.logger.error(format_exc())
             self.logger.warning('Song data initialization error!')
@@ -341,17 +341,28 @@ class FileChecker:
     def check_content_bundle(self) -> bool:
         '''检查 content bundle 有关文件并初始化缓存'''
         f = self.check_folder(Config.CONTENT_BUNDLE_FOLDER_PATH)
-        self.logger.info("Start to initialize content bundle data...")
+        self.logger.info("Initialize content bundle data...")
         try:
             BundleParser()
-            self.logger.info('Content bundle data initialization is complete!')
         except Exception as e:
             self.logger.error(format_exc())
             self.logger.warning('Content bundle data initialization error!')
             f = False
         return f
 
+    def check_world_map(self) -> bool:
+        '''检查 world map 有关文件并初始化缓存'''
+        f = self.check_folder(Config.WORLD_MAP_FOLDER_PATH)
+        self.logger.info("Initialize world map data...")
+        try:
+            MapParser()
+        except Exception as e:
+            self.logger.error(format_exc())
+            self.logger.warning('World map data initialization error!')
+            f = False
+        return f
+
     def check_before_run(self) -> bool:
         '''运行前检查，返回布尔值'''
         MemoryDatabase()  # 初始化内存数据库
-        return self.check_song_file() and self.check_content_bundle() and self.check_update_database()
+        return self.check_song_file() and self.check_content_bundle() and self.check_update_database() and self.check_world_map()
diff --git a/latest version/core/operation.py b/latest version/core/operation.py
index 62b2143..7e4a834 100644
--- a/latest version/core/operation.py	
+++ b/latest version/core/operation.py	
@@ -6,6 +6,7 @@ from .save import SaveData
 from .score import Score
 from .sql import Connect, Sql
 from .user import User
+from .world import MapParser
 
 
 class BaseOperation:
@@ -88,6 +89,16 @@ class RefreshBundleCache(BaseOperation):
         BundleParser().re_init()
 
 
+class RefreshWorldMapCache(BaseOperation):
+    '''
+        刷新 map 缓存
+    '''
+    _name = 'refresh_world_map_cache'
+
+    def run(self):
+        MapParser().re_init()
+
+
 class SaveUpdateScore(BaseOperation):
     '''
         云存档更新成绩，是覆盖式更新
diff --git a/latest version/core/sql.py b/latest version/core/sql.py
index a402088..96035bf 100644
--- a/latest version/core/sql.py	
+++ b/latest version/core/sql.py	
@@ -437,7 +437,7 @@ class DatabaseMigrator:
     def _version_2_11_3_11(self):
         '''
         2.11.3.11 版本特殊更新，调整 recent30 表结构
-        recent30 表从 (user_id: int PK, song_id<index>: text, rating<index>: real, ...) \
+        recent30 表从 (user_id: int PK, rating<index>: real, song_id<index>: text, ...) \
         更改为 (user_id: int PK, r_index: int PK, time_played: int, song_id: text, difficulty: int, score: int, sp, p, n, m, hp, mod, clear_type, rating: real)
         '''
 
diff --git a/latest version/core/world.py b/latest version/core/world.py
index d3c6c46..a82b48e 100644
--- a/latest version/core/world.py	
+++ b/latest version/core/world.py	
@@ -10,34 +10,46 @@ from .error import InputError, MapLocked, NoData
 from .item import ItemFactory
 
 
-@lru_cache(maxsize=128)
-def get_world_name(file_dir: str = Constant.WORLD_MAP_FOLDER_PATH) -> list:
-    '''获取所有地图名称，返回列表'''
-    file_list = []
-    for root, dirs, files in os.walk(file_dir):
-        for file in files:
-            if os.path.splitext(file)[1] == '.json':
-                file_list.append(os.path.splitext(file)[0])
-    return file_list
+class MapParser:
 
+    map_id_path: 'dict[str, str]' = {}
 
-@lru_cache(maxsize=128)
-def get_world_info(map_id: str) -> dict:
-    '''读取json文件内容，返回字典'''
-    world_info = {}
-    with open(os.path.join(Constant.WORLD_MAP_FOLDER_PATH, f'{map_id}.json'), 'rb') as f:
-        world_info = load(f)
+    def __init__(self) -> None:
+        if not self.map_id_path:
+            self.parse()
 
-    return world_info
+    def parse(self) -> None:
+        for root, dirs, files in os.walk(Constant.WORLD_MAP_FOLDER_PATH):
+            for file in files:
+                if not file.endswith('.json'):
+                    continue
 
+                path = os.path.join(root, file)
+                self.map_id_path[file[:-5]] = path
 
-def get_world_all(c, user) -> list:
-    '''
-        读取所有地图信息，返回列表
-        parameter: `user` - `User`类或子类的实例
-    '''
-    worlds = get_world_name()
-    return [UserMap(c, map_id, user) for map_id in worlds]
+    def re_init(self) -> None:
+        self.map_id_path.clear()
+        self.get_world_info.cache_clear()
+        self.parse()
+
+    @staticmethod
+    @lru_cache(maxsize=128)
+    def get_world_info(map_id: str) -> dict:
+        '''读取json文件内容，返回字典'''
+        world_info = {}
+        with open(MapParser.map_id_path[map_id], 'rb') as f:
+            world_info = load(f)
+
+        return world_info
+
+    @staticmethod
+    def get_world_all(c, user) -> list:
+        '''
+            读取所有地图信息，返回列表
+            parameter: `user` - `User` 类或子类的实例
+            `c` - 数据库连接
+        '''
+        return [UserMap(c, map_id, user) for map_id in MapParser.map_id_path.keys()]
 
 
 class Step:
@@ -208,7 +220,7 @@ class Map:
 
     def select_map_info(self):
         '''获取地图信息'''
-        self.from_dict(get_world_info(self.map_id))
+        self.from_dict(MapParser.get_world_info(self.map_id))
 
 
 class UserMap(Map):
diff --git a/latest version/server/world.py b/latest version/server/world.py
index 8567ea0..4fb1edc 100644
--- a/latest version/server/world.py	
+++ b/latest version/server/world.py	
@@ -2,7 +2,7 @@ from flask import Blueprint, request
 
 from core.sql import Connect
 from core.user import UserOnline
-from core.world import UserMap, get_world_all
+from core.world import MapParser, UserMap
 
 from .auth import auth_required
 from .func import arc_try, success_return
@@ -20,7 +20,7 @@ def world_all(user_id):
         return success_return({
             "current_map": user.current_map.map_id,
             "user_id": user_id,
-            "maps": [x.to_dict(has_map_info=True, has_rewards=True) for x in get_world_all(c, user)]
+            "maps": [x.to_dict(has_map_info=True, has_rewards=True) for x in MapParser.get_world_all(c, user)]
         })