diff --git a/src/config/config.py b/src/config/config.py
index 8ffeaa9ab..e403f7ce0 100644
--- a/src/config/config.py
+++ b/src/config/config.py
@@ -373,7 +373,7 @@ class Config(ValidatedConfigBase):
     chinese_typo: ChineseTypoConfig = Field(..., description="中文错别字配置")
     response_post_process: ResponsePostProcessConfig = Field(..., description="响应后处理配置")
     response_splitter: ResponseSplitterConfig = Field(..., description="响应分割配置")
-    experimental: ExperimentalConfig = Field(..., description="实验性功能配置")
+    experimental: ExperimentalConfig = Field(default_factory=lambda: ExperimentalConfig(), description="实验性功能配置")
     maim_message: MaimMessageConfig = Field(..., description="Maim消息配置")
     lpmm_knowledge: LPMMKnowledgeConfig = Field(..., description="LPMM知识配置")
     tool: ToolConfig = Field(..., description="工具配置")