diff --git a/astrbot/dashboard/server.py b/astrbot/dashboard/server.py
index e3f28cb55..8177359dd 100644
--- a/astrbot/dashboard/server.py
+++ b/astrbot/dashboard/server.py
@@ -23,6 +23,7 @@ class AstrBotDashboard():
         self.config = core_lifecycle.astrbot_config
         self.data_path = os.path.abspath(os.path.join(DATAPATH, "dist"))
         self.app = Quart("dashboard", static_folder=self.data_path, static_url_path="/")
+        self.app.config['MAX_CONTENT_LENGTH'] = 128 * 1024 * 1024  # 将Flask允许的最大上传文件体大小设置为128MB
         self.app.json.sort_keys = False
         self.app.before_request(self.auth_middleware)
         # token 用于验证请求