diff --git a/frontend/mining-app/lib/presentation/pages/trading/trading_page.dart b/frontend/mining-app/lib/presentation/pages/trading/trading_page.dart
index 41da2b50..d7d035e7 100644
--- a/frontend/mining-app/lib/presentation/pages/trading/trading_page.dart
+++ b/frontend/mining-app/lib/presentation/pages/trading/trading_page.dart
@@ -64,10 +64,17 @@ class _TradingPageState extends ConsumerState<TradingPage> {
     WidgetsBinding.instance.addPostFrameCallback((_) {
       ref.read(klinesNotifierProvider.notifier).loadKlines(_timeRanges[_selectedTimeRange]);
     });
-    // 启动价格刷新倒计时（每秒递减，到0时重置为60）
+    // 与后端销毁调度器同步：销毁在每分钟第0秒执行，前端在第3秒刷新
+    // 计算距离下一个整分钟第3秒的秒数
+    final now = DateTime.now();
+    final secsIntoMinute = now.second;
+    // 目标：每分钟的第3秒刷新（给销毁+写库留3秒余量）
+    _countdown = secsIntoMinute < 3 ? (3 - secsIntoMinute) : (63 - secsIntoMinute);
     _countdownTimer = Timer.periodic(const Duration(seconds: 1), (_) {
       setState(() {
         if (_countdown <= 1) {
+          // 倒计时归零，强制刷新价格数据
+          ref.invalidate(currentPriceProvider);
           _countdown = 60;
         } else {
           _countdown--;