diff --git a/CHANGELOG-EN.md b/CHANGELOG-EN.md
index 30e27a35..823c9891 100644
--- a/CHANGELOG-EN.md
+++ b/CHANGELOG-EN.md
@@ -34,6 +34,7 @@
 
 ## Latest
 
+* (2021.05.09) Fixed an issue where `RingChart` could not set the background color of the ring  #141
 * (2021.05.08) Added `Liquidchart` support for `Rect` shape
 * (2021.05.07) Improved the `Axis` scale performance #135
 * (2021.05.01) Added `Settings` parameters for painter's material #140
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 95beadce..fe51b4b8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,7 @@
 
 ## Latest
 
+* (2021.05.09) 修复`RingChart`无法设置环形的背景色的问题 #141
 * (2021.05.08) 增加`LiquidChart`的方形水位图支持
 * (2021.05.07) 优化`Axis`的刻度表现 #135
 * (2021.05.01) 增加`Settings`中关于关于材质球设置的参数 #140
diff --git a/Runtime/Internal/DrawSerieRing.cs b/Runtime/Internal/DrawSerieRing.cs
index ec5bbc4f..e990a927 100644
--- a/Runtime/Internal/DrawSerieRing.cs
+++ b/Runtime/Internal/DrawSerieRing.cs
@@ -31,7 +31,7 @@ namespace XCharts
         public void CheckComponent()
         {
         }
-        
+
         public void Update()
         {
             if (m_UpdateTitleText)
@@ -98,6 +98,12 @@ namespace XCharts
                 serieData.runtimePieToAngle = serie.clockwise ? toDegree : startDegree;
                 serieData.runtimePieInsideRadius = insideRadius;
                 serieData.runtimePieOutsideRadius = outsideRadius;
+                if (itemStyle.backgroundColor.a != 0)
+                {
+                    UGL.DrawDoughnut(vh, serie.runtimeCenterPos, insideRadius, outsideRadius, itemStyle.backgroundColor,
+                        itemStyle.backgroundColor, Color.clear, 0, 360, borderWidth, borderColor, 0,
+                        chart.settings.cicleSmoothness, false, serie.clockwise);
+                }
                 UGL.DrawDoughnut(vh, serie.runtimeCenterPos, insideRadius, outsideRadius, itemColor, itemToColor,
                     Color.clear, startDegree, toDegree, borderWidth, borderColor, 0, chart.settings.cicleSmoothness,
                     roundCap, serie.clockwise);