1

backend/app/services/bitget_trading_api_sdk.py

@@ -503,6 +503,37 @@ class BitgetTradingAPI:
                 logger.warning(f"⚠️ 止盈止损价格均不合理，无法设置")
                 return result
 
+            rounded_sl = self._price_to_precision(ccxt_symbol, valid_sl) if valid_sl else None
+            rounded_tp = self._price_to_precision(ccxt_symbol, valid_tp) if valid_tp else None
+            if rounded_sl and rounded_sl != valid_sl:
+                logger.info(f"Bitget 止损价按交易所精度规整: {valid_sl} -> {rounded_sl}")
+                valid_sl = rounded_sl
+            if rounded_tp and rounded_tp != valid_tp:
+                logger.info(f"Bitget 止盈价按交易所精度规整: {valid_tp} -> {rounded_tp}")
+                valid_tp = rounded_tp
+            if pos_side == 'long':
+                if valid_sl and valid_sl >= mark_price:
+                    logger.warning(f"规整后做多止损无效: SL={valid_sl}, Mark={mark_price}，跳过止损")
+                    result["errors"].append(f"规整后止损价 {valid_sl} >= 标记价 {mark_price}")
+                    valid_sl = None
+                if valid_tp and valid_tp <= mark_price:
+                    logger.warning(f"规整后做多止盈无效: TP={valid_tp}, Mark={mark_price}，跳过止盈")
+                    result["errors"].append(f"规整后止盈价 {valid_tp} <= 标记价 {mark_price}")
+                    valid_tp = None
+            else:
+                if valid_sl and valid_sl <= mark_price:
+                    logger.warning(f"规整后做空止损无效: SL={valid_sl}, Mark={mark_price}，跳过止损")
+                    result["errors"].append(f"规整后止损价 {valid_sl} <= 标记价 {mark_price}")
+                    valid_sl = None
+                if valid_tp and valid_tp >= mark_price:
+                    logger.warning(f"规整后做空止盈无效: TP={valid_tp}, Mark={mark_price}，跳过止盈")
+                    result["errors"].append(f"规整后止盈价 {valid_tp} >= 标记价 {mark_price}")
+                    valid_tp = None
+
+            if not valid_sl and not valid_tp:
+                logger.warning("⚠️ 止盈止损价格规整后均不合理，无法设置")
+                return result
+
             # 使用独立的止损/止盈计划订单
             # 注意：这种方式需要在平仓时也取消这些计划订单
 
@@ -1125,6 +1156,16 @@ class BitgetTradingAPI:
         # 回退：4 位小数截断
         return math.floor(amount * 10000) / 10000
 
+    def _price_to_precision(self, ccxt_symbol: str, price: Optional[float]) -> Optional[float]:
+        """按交易所价格精度规整触发价，避免 Bitget 拒绝 TP/SL 策略单。"""
+        if price is None:
+            return None
+        try:
+            return float(self.exchange.price_to_precision(ccxt_symbol, price))
+        except Exception as e:
+            logger.warning(f"{ccxt_symbol} 价格精度规整失败，使用兜底四位小数: {price}, error={e}")
+            return round(float(price), 4)
+
     def _get_min_amount(self, ccxt_symbol: str) -> float:
         """获取交易对最小下单数量"""
         try: