diff --git a/Assets/XCharts/CHANGELOG-EN.md b/Assets/XCharts/CHANGELOG-EN.md
index 22a5e48f..480ef25d 100644
--- a/Assets/XCharts/CHANGELOG-EN.md
+++ b/Assets/XCharts/CHANGELOG-EN.md
@@ -38,6 +38,8 @@
 
 ## master
 
+* (2021.07.04) Fixed incorrect mouse area indication after `PieChart` selected sector
+* (2021.07.04) Optimize when the `Label` of `PieChart` is `Inside`, the offset can be adjusted by the parameter `Margin`
 * (2021.07.01) Added `DataZoom` arguments to `supportInsideScroll` and `supportInsideDrag` to set whether scrolling and dragging are supported in the coordinate system
 * (2021.06.27) Add `showStartLabel` and `showEndLabel` arguments to `AxisLabel` to set whether the `Label` should be displayed at the beginning and end of the `AxisLabel`
 * (2021.06.27) Added `formatter` delegate method to `AxisLabel` and `SerieLabel` (#145)
diff --git a/Assets/XCharts/CHANGELOG.md b/Assets/XCharts/CHANGELOG.md
index bfdafc11..c6585b49 100644
--- a/Assets/XCharts/CHANGELOG.md
+++ b/Assets/XCharts/CHANGELOG.md
@@ -38,6 +38,8 @@
 
 ## master
 
+* (2021.07.04) 修复`PieChart`选中扇区后鼠标区域指示不准确的问题
+* (2021.07.04) 优化`PieChart`的`Label`为`Inside`时可通过参数`Margin`调节偏移
 * (2021.07.01) 增加`DataZoom`的`supportInsideScroll`和`supportInsideDrag`参数设置坐标系内是否支持滚动和拖拽
 * (2021.06.27) 增加`AxisLabel`的`showStartLabel`和`showEndLabel`参数设置首尾的`Label`是否显示
 * (2021.06.27) 增加`AxisLabel`和`SerieLabel`的`formatter`委托方法 (#145)
diff --git a/Assets/XCharts/Runtime/Internal/DrawSeriePie.cs b/Assets/XCharts/Runtime/Internal/DrawSeriePie.cs
index 60a87c8b..d62a07f7 100644
--- a/Assets/XCharts/Runtime/Internal/DrawSeriePie.cs
+++ b/Assets/XCharts/Runtime/Internal/DrawSeriePie.cs
@@ -566,7 +566,6 @@ namespace XCharts
         {
             if (serie.type != SerieType.Pie) return -1;
             var dist = Vector2.Distance(local, serie.runtimeCenterPos);
-            if (dist < serie.runtimeInsideRadius || dist > serie.runtimeOutsideRadius) return -1;
             Vector2 dir = local - new Vector2(serie.runtimeCenterPos.x, serie.runtimeCenterPos.y);
             float angle = ChartHelper.GetAngle360(Vector2.up, dir);
             for (int i = 0; i < serie.data.Count; i++)
@@ -574,7 +573,12 @@ namespace XCharts
                 var serieData = serie.data[i];
                 if (angle >= serieData.runtimePieStartAngle && angle <= serieData.runtimePieToAngle)
                 {
-                    return i;
+                    var ndist = !serieData.selected ? dist :
+                         Vector2.Distance(local, serieData.runtiemPieOffsetCenter);
+                    if (ndist >= serieData.runtimePieInsideRadius && ndist <= serieData.runtimePieOutsideRadius)
+                    {
+                        return i;
+                    }
                 }
             }
             return -1;