diff --git a/packages/core/src/services/map/IMapService.ts b/packages/core/src/services/map/IMapService.ts
index c4af094802..0fed5893e8 100644
--- a/packages/core/src/services/map/IMapService.ts
+++ b/packages/core/src/services/map/IMapService.ts
@@ -11,6 +11,7 @@ export interface IPoint {
   y: number;
 }
 
+export type MapStyle = string | { [key: string]: any };
 export interface IMapWrapper {
   setContainer(container: Container, id: string): void;
 }
@@ -108,7 +109,7 @@ export interface IMapConfig<RawMap = {}> {
   /**
    * 底图样式
    */
-  style?: string | { [key: string]: any };
+  style?: MapStyle;
   /**
    * 最小缩放等级
    */
diff --git a/packages/maps/src/amap/index.ts b/packages/maps/src/amap/index.ts
index cf9f00e974..3143322762 100644
--- a/packages/maps/src/amap/index.ts
+++ b/packages/maps/src/amap/index.ts
@@ -13,6 +13,7 @@ import {
   IPoint,
   IViewport,
   MapServiceEvent,
+  MapStyle,
   TYPES,
 } from '@antv/l7-core';
 import { DOM } from '@antv/l7-utils';
@@ -249,7 +250,7 @@ export default class AMapService
           );
           // @ts-ignore
           this.map = new AMap.Map(this.$mapContainer, {
-            mapStyle: this.getMapStyle(style),
+            mapStyle: this.getMapStyle(style as string),
             zooms: [minZoom, maxZoom],
             viewMode: '3D',
             ...rest,
@@ -361,7 +362,7 @@ export default class AMapService
     }
   };
 
-  private getMapStyle(name: string) {
+  private getMapStyle(name: string): string {
     return MapTheme[name] ? MapTheme[name] : name;
   }
   private creatAmapContainer(id: string | HTMLDivElement) {
diff --git a/packages/maps/src/mapbox/index.ts b/packages/maps/src/mapbox/index.ts
index 95786ec2f7..b8659c1716 100644
--- a/packages/maps/src/mapbox/index.ts
+++ b/packages/maps/src/mapbox/index.ts
@@ -13,6 +13,7 @@ import {
   IPoint,
   IViewport,
   MapServiceEvent,
+  MapStyle,
   TYPES,
 } from '@antv/l7-core';
 import { DOM } from '@antv/l7-utils';
@@ -318,7 +319,10 @@ export default class MapboxService
     }
   }
 
-  private getMapStyle(name: string) {
+  private getMapStyle(name: MapStyle) {
+    if (typeof name !== 'string') {
+      return name;
+    }
     return MapTheme[name] ? MapTheme[name] : name;
   }
 }