diff --git a/.env.example b/.env.example
index 5533906b..81103511 100644
--- a/.env.example
+++ b/.env.example
@@ -81,4 +81,7 @@ LOGGER_FILTERED_NAMES=["uvicorn","ErrorPush","ApiHelper"]
 # ERROR_SENTRY_DSN=
 
 # Notice
-NOTICE_USER_MISMATCH="再乱点我叫西风骑士团、千岩军、天领奉行、三十人团和风纪官了！"
\ No newline at end of file
+NOTICE_USER_MISMATCH="再乱点我叫西风骑士团、千岩军、天领奉行、三十人团和风纪官了！"
+
+# Plugin
+# PLUGIN_DOWNLOAD_FILE_MAX_SIZE=5
diff --git a/core/config.py b/core/config.py
index 9c928d8d..8c626577 100644
--- a/core/config.py
+++ b/core/config.py
@@ -104,6 +104,13 @@ class NoticeConfig(Settings):
         env_prefix = "notice_"
 
 
+class PluginConfig(Settings):
+    download_file_max_size: int = 5
+
+    class Config(Settings.Config):
+        env_prefix = "plugin_"
+
+
 class BotConfig(Settings):
     debug: bool = False
 
@@ -134,6 +141,7 @@ class BotConfig(Settings):
     mtproto: MTProtoConfig = MTProtoConfig()
     error: ErrorConfig = ErrorConfig()
     notice: NoticeConfig = NoticeConfig()
+    plugin: PluginConfig = PluginConfig()
 
 
 BotConfig.update_forward_refs()
diff --git a/plugins/genshin/gacha/gacha_log.py b/plugins/genshin/gacha/gacha_log.py
index c6dc4216..c69495d0 100644
--- a/plugins/genshin/gacha/gacha_log.py
+++ b/plugins/genshin/gacha/gacha_log.py
@@ -11,6 +11,7 @@ from telegram.helpers import create_deep_linked_url
 
 from core.base.assets import AssetsService
 from core.baseplugin import BasePlugin
+from core.config import config
 from core.cookies import CookiesService
 from core.cookies.error import CookiesNotFoundError
 from core.plugin import Plugin, handler, conversation
@@ -115,8 +116,8 @@ class GachaLogPlugin(Plugin.Conversation, BasePlugin.Conversation):
         else:
             await message.reply_text("文件格式错误，请发送符合 UIGF 标准的抽卡记录文件或者 paimon.moe、非小酋导出的 xlsx 格式的抽卡记录文件")
             return
-        if document.file_size > 2 * 1024 * 1024:
-            await message.reply_text("文件过大，请发送小于 2 MB 的文件")
+        if document.file_size > config.plugin.download_file_max_size * 1024 * 1024:
+            await message.reply_text(f"文件过大，请发送小于 {config.plugin.download_file_max_size} MB 的文件")
             return
         try:
             out = BytesIO()