diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index 325d2418..b9021da8 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -75,6 +75,7 @@ slug: /changelog
 
 ## master
 
+* (2024.07.22) 优化`Pie`的`Label`在`Tooltip`触发时的表现
 * (2024.07.21) 修复`Tooltip`在开启`DataZoom`时指示内容不准确的问题
 * (2024.07.17) 修复`MarkLine`的`Label`在初始化时可能会闪烁的问题
 * (2024.07.16) 优化`Axis`为`Time`时间轴时的`Tooltip`默认效果
diff --git a/Runtime/Serie/Pie/PieHandler.cs b/Runtime/Serie/Pie/PieHandler.cs
index 8efb5333..66b3f6ed 100644
--- a/Runtime/Serie/Pie/PieHandler.cs
+++ b/Runtime/Serie/Pie/PieHandler.cs
@@ -470,7 +470,7 @@ namespace XCharts.Runtime
             var rad = Mathf.Deg2Rad * serieData.context.halfAngle;
             var lineLength1 = ChartHelper.GetActualValue(labelLine.lineLength1, serie.context.outsideRadius);
             var lineLength2 = ChartHelper.GetActualValue(labelLine.lineLength2, serie.context.outsideRadius);
-            var radius = lineLength1 + serie.context.outsideRadius - serieData.context.outsideRadius;
+            var radius = lineLength1;
             var pos1 = startPosition;
             var pos2 = pos1 + new Vector3(Mathf.Sin(rad) * radius, Mathf.Cos(rad) * radius);
             var pos5 = labelLine.lineType == LabelLine.LineType.HorizontalLine