diff --git a/frontend/mining-app/lib/presentation/widgets/kline_chart/kline_chart_widget.dart b/frontend/mining-app/lib/presentation/widgets/kline_chart/kline_chart_widget.dart
index 6ec0eb4e..02f65954 100644
--- a/frontend/mining-app/lib/presentation/widgets/kline_chart/kline_chart_widget.dart
+++ b/frontend/mining-app/lib/presentation/widgets/kline_chart/kline_chart_widget.dart
@@ -121,6 +121,7 @@ class _KlineChartWidgetState extends State<KlineChartWidget> {
     // 当 K 线数据变化时，重新初始化
     if (oldWidget.klines.length != widget.klines.length) {
       _initialized = false;
+      _displayStartIndex = 0;  // 重置起始索引
     }
   }
 
@@ -572,11 +573,21 @@ class _KlineChartWidgetState extends State<KlineChartWidget> {
       );
     }
 
-    // 根据 _displayStartIndex 取数据
-    final int endIndex = math.min(_displayStartIndex + fullScreenCount, widget.klines.length);
+    // 如果还未初始化，先计算正确的起始索引（让最新K线在中心）
+    int startIndex = _displayStartIndex;
+    if (!_initialized) {
+      final int halfScreenCount = (chartWidth / 2 / _candleWidth).ceil();
+      startIndex = math.max(0, widget.klines.length - halfScreenCount);
+    }
+
+    // 确保 startIndex 在有效范围内
+    final int maxStartIndex = math.max(0, widget.klines.length - fullScreenCount);
+    startIndex = startIndex.clamp(0, maxStartIndex);
+
+    final int endIndex = math.min(startIndex + fullScreenCount, widget.klines.length);
     return _VisibleData(
-      klines: widget.klines.sublist(_displayStartIndex, endIndex),
-      startIndex: _displayStartIndex,
+      klines: widget.klines.sublist(startIndex, endIndex),
+      startIndex: startIndex,
       candleWidth: _candleWidth,
     );
   }