diff --git a/src/components/Charts/Stock/MiniTimelineChart.js b/src/components/Charts/Stock/MiniTimelineChart.js
index c9717654..f18d277c 100644
--- a/src/components/Charts/Stock/MiniTimelineChart.js
+++ b/src/components/Charts/Stock/MiniTimelineChart.js
@@ -202,10 +202,25 @@ const MiniTimelineChart = React.memo(function MiniTimelineChart({ stockCode, eve
                     return h * 60 + m;
                 };
                 const eventMin = parseMinuteTime(eventMinute);
+
+                // 盘前时间定义：15:00之后（上个交易日收盘后）或09:30之前
+                // 盘中时间：09:30 - 15:00
+                const marketOpenMin = 9 * 60 + 30;  // 09:30
+                const marketCloseMin = 15 * 60;     // 15:00
+
+                // 判断事件是否在盘前（上个交易日15:00之后 或 当天09:30之前）
+                const isPreMarket = eventMin >= marketCloseMin || eventMin < marketOpenMin;
+
                 let nearestIdx = 0;
-                for (let i = 1; i < times.length; i++) {
-                    if (Math.abs(parseMinuteTime(times[i]) - eventMin) < Math.abs(parseMinuteTime(times[nearestIdx]) - eventMin)) {
-                        nearestIdx = i;
+                if (isPreMarket) {
+                    // 盘前消息：黄线显示在最左侧（开盘位置）
+                    nearestIdx = 0;
+                } else {
+                    // 盘中消息：找最接近的时间点
+                    for (let i = 1; i < times.length; i++) {
+                        if (Math.abs(parseMinuteTime(times[i]) - eventMin) < Math.abs(parseMinuteTime(times[nearestIdx]) - eventMin)) {
+                            nearestIdx = i;
+                        }
                     }
                 }
                 eventMarkLineData.push({