diff --git a/trading_system/market_scanner.py b/trading_system/market_scanner.py
index ce10057..05957ce 100644
--- a/trading_system/market_scanner.py
+++ b/trading_system/market_scanner.py
@@ -425,14 +425,24 @@ class MarketScanner:
             if ema20 and ema50:
                 if current_price > ema20 > ema50:  # 上升趋势
                     if trend_4h in ('up', 'neutral', None):
-                        signal_strength += TREND_SIGNAL_WEIGHTS['ema_cross']
-                        if direction is None:
-                            direction = 'BUY'
+                        # 冲突检查
+                        if direction == 'SELL':
+                             signal_strength = 0
+                             direction = None
+                        else:
+                            signal_strength += TREND_SIGNAL_WEIGHTS['ema_cross']
+                            if direction is None:
+                                direction = 'BUY'
                 elif current_price < ema20 < ema50:  # 下降趋势
                     if trend_4h in ('down', 'neutral', None):
-                        signal_strength += TREND_SIGNAL_WEIGHTS['ema_cross']
-                        if direction is None:
-                            direction = 'SELL'
+                        # 冲突检查
+                        if direction == 'BUY':
+                             signal_strength = 0
+                             direction = None
+                        else:
+                            signal_strength += TREND_SIGNAL_WEIGHTS['ema_cross']
+                            if direction is None:
+                                direction = 'SELL'
             
             # 价格与EMA20关系
             if ema20:
diff --git a/trading_system/strategy.py b/trading_system/strategy.py
index 69b9c40..eb294c4 100644
--- a/trading_system/strategy.py
+++ b/trading_system/strategy.py
@@ -440,10 +440,16 @@ class TradingStrategy:
                 if trend_4h in ('up', 'neutral'):
                     # OPTIMIZATION: 添加 RSI 过滤
                     if rsi is None or rsi < 70:
-                        signal_strength += TREND_SIGNAL_WEIGHTS['ema_cross']
-                        reasons.append("EMA20上穿EMA50，上升趋势")
-                        if direction is None:
-                            direction = 'BUY'
+                        # 冲突检查：如果已有方向且与当前不符，则是严重冲突
+                        if direction == 'SELL':
+                            reasons.append("❌ 信号冲突：MACD看空但EMA看多")
+                            signal_strength = 0
+                            direction = None
+                        else:
+                            signal_strength += TREND_SIGNAL_WEIGHTS['ema_cross']
+                            reasons.append("EMA20上穿EMA50，上升趋势")
+                            if direction is None:
+                                direction = 'BUY'
                 else:
                     reasons.append(f"1H均线向上但4H趋势相反({trend_4h})，禁止逆势")
             elif current_price < ema20 < ema50:  # 下降趋势
@@ -451,10 +457,16 @@ class TradingStrategy:
                 if trend_4h in ('down', 'neutral'):
                     # OPTIMIZATION: 添加 RSI 过滤
                     if rsi is None or rsi > 30:
-                        signal_strength += TREND_SIGNAL_WEIGHTS['ema_cross']
-                        reasons.append("EMA20下穿EMA50，下降趋势")
-                        if direction is None:
-                            direction = 'SELL'
+                        # 冲突检查：如果已有方向且与当前不符，则是严重冲突
+                        if direction == 'BUY':
+                            reasons.append("❌ 信号冲突：MACD看多但EMA看空")
+                            signal_strength = 0
+                            direction = None
+                        else:
+                            signal_strength += TREND_SIGNAL_WEIGHTS['ema_cross']
+                            reasons.append("EMA20下穿EMA50，下降趋势")
+                            if direction is None:
+                                direction = 'SELL'
                 else:
                     reasons.append(f"1H均线向下但4H趋势相反({trend_4h})，禁止逆势")