diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index 2caaab95..fc65c0fd 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -69,6 +69,7 @@ slug: /changelog
 
 ## master
 
+* (2023.11.11) 修复`Legend`的`formatter`在数据变更时没有自动刷新的问题
 * (2023.11.05) 修复`SerieEventData`的`value`一直是0的问题 (#287)
 * (2023.11.03) 修复`Bar`设置渐变色时鼠标移出效果异常的问题 (#285)
 * (2023.11.02) 优化`SerieData`设置`ignore`时`formatter`的忽略问题
diff --git a/Examples/Example01_RandomData.cs b/Examples/Example01_RandomData.cs
index e34e8e9a..e8953d3f 100644
--- a/Examples/Example01_RandomData.cs
+++ b/Examples/Example01_RandomData.cs
@@ -47,6 +47,10 @@ namespace XCharts.Example
             {
                 UpdateData();
             }
+            else if (Input.GetKeyDown(KeyCode.C))
+            {
+                chart.ClearData();
+            }
             lastAddTime += Time.deltaTime;
             if (loopAdd && lastAddTime >= loopAddTime)
             {
diff --git a/Runtime/Serie/SerieHandler.cs b/Runtime/Serie/SerieHandler.cs
index 07ca66b3..7031162a 100644
--- a/Runtime/Serie/SerieHandler.cs
+++ b/Runtime/Serie/SerieHandler.cs
@@ -108,6 +108,7 @@ namespace XCharts.Runtime
             if (serie.dataDirty)
             {
                 SeriesHelper.UpdateSerieNameList(chart, ref chart.m_LegendRealShowName);
+                chart.OnSerieDataUpdate(serie.index);
                 serie.OnDataUpdate();
                 serie.dataDirty = false;
             }