diff --git a/trading_system/position_manager.py b/trading_system/position_manager.py
index 0a7756b..1e6358c 100644
--- a/trading_system/position_manager.py
+++ b/trading_system/position_manager.py
@@ -2878,6 +2878,19 @@ class PositionManager:
                     should_close = True
                     exit_reason = 'take_profit'
                     
+                    # 计算持仓时间（用于日志）
+                    entry_time = position_info.get('entryTime')
+                    hold_time_minutes = 0
+                    if entry_time:
+                        try:
+                            if isinstance(entry_time, datetime):
+                                hold_time_sec = int((get_beijing_time() - entry_time).total_seconds())
+                            else:
+                                hold_time_sec = int(time.time() - (float(entry_time) if isinstance(entry_time, (int, float)) else 0))
+                            hold_time_minutes = hold_time_sec / 60.0
+                        except Exception:
+                            hold_time_minutes = 0
+                    
                     # 详细诊断日志：记录平仓时的所有关键信息
                     logger.info("=" * 80)
                     logger.info(f"{symbol} [实时监控-平仓诊断日志] ===== 触发止盈平仓 =====")