diff --git a/backend/app/services/paper_trading_service.py b/backend/app/services/paper_trading_service.py
index 92c685a..f091a9e 100644
--- a/backend/app/services/paper_trading_service.py
+++ b/backend/app/services/paper_trading_service.py
@@ -30,7 +30,7 @@ class PaperTradingService:
         # 移动止损配置
         self.trailing_stop_enabled = self.settings.paper_trading_trailing_stop_enabled
         self.trailing_stop_threshold_multiplier = self.settings.paper_trading_trailing_stop_threshold_multiplier
-        self.trailing_stop_ratio = self.settings.paper_trailing_stop_ratio
+        self.trailing_stop_ratio = self.settings.paper_trading_trailing_stop_ratio
 
         # 动态止盈配置
         self.dynamic_tp_enabled = self.settings.paper_trading_dynamic_tp_enabled