diff --git a/types/echarts/index.d.ts b/types/echarts/index.d.ts
index f460a9eaca..f5b8e27072 100644
--- a/types/echarts/index.d.ts
+++ b/types/echarts/index.d.ts
@@ -69,6 +69,25 @@ declare namespace ECharts {
         isDisposed():boolean
 
         dispose():void
+        
+        // 转换逻辑点到像素
+        convertToPixel(finder: {
+            seriesIndex?: number,
+            seriesId?: string,
+            seriesName?: string,
+            geoIndex?: number,
+            geoId?: string,
+            geoName?: string,
+            xAxisIndex?: number,
+            xAxisId?: string,
+            xAxisName?: string,
+            yAxisIndex?: number,
+            yAxisId?: string,
+            yAxisName?: string,
+            gridIndex?: number,
+            gridId?: string
+            gridName?: string
+        } | string, value: string|Array<any>): string|Array<any>
     }
 
     interface EChartOption {