diff --git a/src/config/unified_config.py b/src/config/unified_config.py
index cb0693d..5c5d226 100644
--- a/src/config/unified_config.py
+++ b/src/config/unified_config.py
@@ -185,5 +185,7 @@ def get_config() -> UnifiedConfig:
 def reload_config() -> UnifiedConfig:
     """强制重新加载配置"""
     global _config_instance
+    # 强制重新读取 .env 文件并覆盖当前环境变量
+    load_dotenv(override=True)
     _config_instance = None
     return get_config()