diff --git a/core/core-frontend/src/views/chart/components/js/panel/charts/bar/waterfall.ts b/core/core-frontend/src/views/chart/components/js/panel/charts/bar/waterfall.ts
index a584f2d57b..8a301037e1 100644
--- a/core/core-frontend/src/views/chart/components/js/panel/charts/bar/waterfall.ts
+++ b/core/core-frontend/src/views/chart/components/js/panel/charts/bar/waterfall.ts
@@ -187,7 +187,7 @@ export class Waterfall extends G2PlotChartView<WaterfallOptions, G2Waterfall> {
             let tmpValue = totalMap[id]
             let color = 'grey'
             if (id === yAxis[0].id) {
-              tmpValue = parseFloat(head.value as unknown as string)
+              tmpValue = head.data.value
               color = head.color
             }
             const value = valueFormatter(tmpValue, formatter.formatterCfg)