diff --git a/trading_system/atr_strategy.py b/trading_system/atr_strategy.py
index 1aa3c75..0ccaf48 100644
--- a/trading_system/atr_strategy.py
+++ b/trading_system/atr_strategy.py
@@ -19,7 +19,7 @@ class ATRStrategy:
     def __init__(self):
         """初始化ATR策略"""
         self.use_atr = config.TRADING_CONFIG.get('USE_ATR_STOP_LOSS', True)
-        self.atr_sl_multiplier = config.TRADING_CONFIG.get('ATR_STOP_LOSS_MULTIPLIER', 1.8)
+        self.atr_sl_multiplier = config.TRADING_CONFIG.get('ATR_STOP_LOSS_MULTIPLIER', 2.5)  # 默认2.5，放宽止损提升胜率
         self.atr_tp_multiplier = config.TRADING_CONFIG.get('ATR_TAKE_PROFIT_MULTIPLIER', 1.5)
         self.risk_reward_ratio = config.TRADING_CONFIG.get('RISK_REWARD_RATIO', 1.5)
         self.atr_period = config.TRADING_CONFIG.get('ATR_PERIOD', 14)
@@ -37,7 +37,7 @@ class ATRStrategy:
         try:
             cfg = getattr(config, "TRADING_CONFIG", {}) or {}
             self.use_atr = bool(cfg.get('USE_ATR_STOP_LOSS', True))
-            self.atr_sl_multiplier = float(cfg.get('ATR_STOP_LOSS_MULTIPLIER', 1.8))
+            self.atr_sl_multiplier = float(cfg.get('ATR_STOP_LOSS_MULTIPLIER', 2.5))  # 默认2.5，放宽止损提升胜率
             self.atr_tp_multiplier = float(cfg.get('ATR_TAKE_PROFIT_MULTIPLIER', 1.5))
             self.risk_reward_ratio = float(cfg.get('RISK_REWARD_RATIO', 1.5))
             self.atr_period = int(cfg.get('ATR_PERIOD', 14))
diff --git a/trading_system/position_manager.py b/trading_system/position_manager.py
index bde5cd6..15c1038 100644
--- a/trading_system/position_manager.py
+++ b/trading_system/position_manager.py
@@ -211,7 +211,7 @@ class PositionManager:
             # 估算止损价格（用于固定风险计算）
             estimated_stop_loss = None
             if atr and atr > 0:
-                atr_multiplier = config.TRADING_CONFIG.get('ATR_STOP_LOSS_MULTIPLIER', 1.8)
+                atr_multiplier = config.TRADING_CONFIG.get('ATR_STOP_LOSS_MULTIPLIER', 2.5)  # 默认2.5，放宽止损提升胜率
                 if estimated_side == 'BUY':
                     estimated_stop_loss = estimated_entry_price - (atr * atr_multiplier)
                 else:  # SELL
@@ -506,7 +506,7 @@ class PositionManager:
 
                 if atr is not None and atr > 0 and entry_price > 0:
                     atr_percent = atr / entry_price
-                    atr_multiplier = config.TRADING_CONFIG.get('ATR_STOP_LOSS_MULTIPLIER', 1.8)
+                    atr_multiplier = config.TRADING_CONFIG.get('ATR_STOP_LOSS_MULTIPLIER', 2.5)  # 默认2.5，放宽止损提升胜率
                     stop_distance_for_tp = entry_price * atr_percent * atr_multiplier
 
                 take_profit_pct_margin = config.TRADING_CONFIG.get('TAKE_PROFIT_PERCENT', 0.30)
diff --git a/trading_system/risk_manager.py b/trading_system/risk_manager.py
index 14fbe5e..4d2f924 100644
--- a/trading_system/risk_manager.py
+++ b/trading_system/risk_manager.py
@@ -297,7 +297,7 @@ class RiskManager:
                     if stop_loss_price is None:
                         # 尝试使用ATR估算止损距离
                         if atr and atr > 0:
-                            atr_multiplier = config.TRADING_CONFIG.get('ATR_STOP_LOSS_MULTIPLIER', 1.8)
+                            atr_multiplier = config.TRADING_CONFIG.get('ATR_STOP_LOSS_MULTIPLIER', 2.5)  # 默认2.5，放宽止损提升胜率
                             if side == 'BUY':
                                 estimated_stop_loss = entry_price - (atr * atr_multiplier)
                             else:  # SELL