diff --git a/report-ui/src/views/report/bigscreen/designer/widget/decorate/widgetDecoratePieChart.vue b/report-ui/src/views/report/bigscreen/designer/widget/decorate/widgetDecoratePieChart.vue
index d6deb124..c38ed9f2 100644
--- a/report-ui/src/views/report/bigscreen/designer/widget/decorate/widgetDecoratePieChart.vue
+++ b/report-ui/src/views/report/bigscreen/designer/widget/decorate/widgetDecoratePieChart.vue
@@ -303,16 +303,24 @@ export default {
       } else {
         series.data = ''
       }
+      let lastRing0Color = optionsSetup.lastRing0Color;
+      let lastRing100Color = optionsSetup.lastRing100Color;
+      if (lastRing0Color == "") {
+        lastRing0Color = 'rgba(0,0,0,0)'
+      }
+      if (lastRing100Color == "") {
+        lastRing100Color = 'rgba(0,0,0,0)'
+      }
       const normal = {
         color: {
           colorStops: [
             {
               offset: 0,
-              color: optionsSetup.lastRing0Color,
+              color: lastRing0Color,
             },
             {
               offset: 1,
-              color: optionsSetup.lastRing100Color,
+              color: lastRing100Color,
             },
           ],
         },