diff --git a/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-echarts/src/BoxPlot/EchartsBoxPlot.tsx b/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-echarts/src/BoxPlot/EchartsBoxPlot.tsx
index 5e7370cad16..f13396d096b 100644
--- a/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-echarts/src/BoxPlot/EchartsBoxPlot.tsx
+++ b/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-echarts/src/BoxPlot/EchartsBoxPlot.tsx
@@ -74,7 +74,7 @@ export default function EchartsBoxPlot({
       if (values.includes(name)) {
         handleChange(values.filter(v => v !== name));
       } else {
-        handleChange([...values, name]);
+        handleChange([name]);
       }
     },
   };
diff --git a/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-echarts/src/BoxPlot/transformProps.ts b/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-echarts/src/BoxPlot/transformProps.ts
index 420287c7a9b..ad16c2b54d3 100644
--- a/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-echarts/src/BoxPlot/transformProps.ts
+++ b/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-echarts/src/BoxPlot/transformProps.ts
@@ -32,6 +32,7 @@ import {
 } from './types';
 import { extractGroupbyLabel, getColtypesMapping, sanitizeHtml } from '../utils/series';
 import { defaultGrid, defaultTooltip, defaultYAxis } from '../defaults';
+import { OpacityEnum } from '../constants';
 
 export default function transformProps(
   chartProps: EchartsBoxPlotChartProps,
@@ -63,6 +64,7 @@ export default function transformProps(
       });
       return metricLabels.map(metric => {
         const name = metricLabels.length === 1 ? groupbyLabel : `${groupbyLabel}, ${metric}`;
+        const isFiltered = filterState.selectedValues && !filterState.selectedValues.includes(name);
         return {
           name,
           value: [
@@ -77,7 +79,7 @@ export default function transformProps(
           ],
           itemStyle: {
             color: colorFn(groupbyLabel),
-            opacity: 0.6,
+            opacity: isFiltered ? OpacityEnum.SemiTransparent : 0.6,
             borderColor: colorFn(groupbyLabel),
           },
         };
@@ -96,6 +98,7 @@ export default function transformProps(
         const name = metricLabels.length === 1 ? groupbyLabel : `${groupbyLabel}, ${metric}`;
         // Outlier data is a nested array of numbers (uncommon, therefore no need to add to DataRecordValue)
         const outlierDatum = (datum[`${metric}__outliers`] || []) as number[];
+        const isFiltered = filterState.selectedValues && !filterState.selectedValues.includes(name);
         return {
           name: 'outlier',
           type: 'scatter',
@@ -111,6 +114,7 @@ export default function transformProps(
           },
           itemStyle: {
             color: colorFn(groupbyLabel),
+            opacity: isFiltered ? OpacityEnum.SemiTransparent : OpacityEnum.NonTransparent,
           },
         };
       }),