diff --git a/report-ui/src/views/report/bigscreen/designer/form/colorPicker.vue b/report-ui/src/views/report/bigscreen/designer/form/colorPicker.vue
index 84737ef6..1d2877d7 100644
--- a/report-ui/src/views/report/bigscreen/designer/form/colorPicker.vue
+++ b/report-ui/src/views/report/bigscreen/designer/form/colorPicker.vue
@@ -10,6 +10,7 @@
       <el-color-picker
         v-model="colorValue"
         :predefine="predefineColors"
+        show-alpha
         size="mini"
         @change="changeColor"
       />