diff --git a/packages/maps/src/amap/map.ts b/packages/maps/src/amap/map.ts
index 43c0125d83..629088d1c9 100644
--- a/packages/maps/src/amap/map.ts
+++ b/packages/maps/src/amap/map.ts
@@ -30,6 +30,7 @@ import { Version } from '../version';
 import './logo.css';
 import { MapTheme } from './theme';
 import Viewport from './Viewport';
+import SimpleMapCoord from '../simpleMapCoord';
 let mapdivCount = 0;
 // @ts-ignore
 window.forceWebGL = true;
@@ -57,7 +58,7 @@ const LNGLAT_OFFSET_ZOOM_THRESHOLD = 12; // 暂时关闭 fix 统一不同坐标
 export default class AMapService
   implements IMapService<AMap.Map & IAMapInstance> {
   public version: string = Version['GAODE1.x'];
-  public simpleMapCoord: SimpleCoordinate;
+  public simpleMapCoord: SimpleCoordinate = new SimpleMapCoord();
   /**
    * 原始地图实例
    */
diff --git a/packages/maps/src/amap2/map.ts b/packages/maps/src/amap2/map.ts
index c496dffa78..e1ecd80c02 100644
--- a/packages/maps/src/amap2/map.ts
+++ b/packages/maps/src/amap2/map.ts
@@ -24,7 +24,7 @@ import { DOM } from '@antv/l7-utils';
 import { mat4, vec2, vec3 } from 'gl-matrix';
 import { inject, injectable } from 'inversify';
 import 'reflect-metadata';
-import { SimpleCoordinate } from '..';
+import SimpleMapCoord from '../simpleMapCoord';
 import { IAMapEvent, IAMapInstance } from '../../typings/index';
 import { toPaddingOptions } from '../utils';
 import { Version } from '../version';
@@ -60,7 +60,7 @@ let pendingResolveQueue: Array<() => void> = [];
 export default class AMapService
   implements IMapService<AMap.Map & IAMapInstance> {
   public version: string = Version['GAODE2.x'];
-  public simpleMapCoord: SimpleCoordinate;
+  public simpleMapCoord: SimpleMapCoord = new SimpleMapCoord();
   /**
    * 原始地图实例
    */
diff --git a/packages/maps/src/earth/map.ts b/packages/maps/src/earth/map.ts
index f1a2cbc922..1be935d953 100644
--- a/packages/maps/src/earth/map.ts
+++ b/packages/maps/src/earth/map.ts
@@ -31,8 +31,8 @@ const EventMap: {
   zoomchange: 'zoom',
   dragging: 'drag',
 };
-import { SimpleCoordinate } from '..';
 import { MapTheme } from './theme';
+import SimpleMapCoord from '../simpleMapCoord';
 
 const LNGLAT_OFFSET_ZOOM_THRESHOLD = 12;
 /**
@@ -42,7 +42,7 @@ const LNGLAT_OFFSET_ZOOM_THRESHOLD = 12;
 export default class L7EarthService implements IEarthService<Map> {
   public version: string = Version.GLOBEL;
   public map: Map;
-  public simpleMapCoord: SimpleCoordinate;
+  public simpleMapCoord: SimpleMapCoord = new SimpleMapCoord();
 
   // TODO: 判断地图是否正在拖拽
   public dragging: boolean = false;
diff --git a/packages/maps/src/index.ts b/packages/maps/src/index.ts
index 33f6dc04e4..c9951fa3f1 100644
--- a/packages/maps/src/index.ts
+++ b/packages/maps/src/index.ts
@@ -4,7 +4,7 @@ import GaodeMapV2 from './amap2/';
 import Earth from './earth/';
 // import GaodeMapV2 from './amap2/';
 import Map from './map/';
-import SimpleCoordinate from './map/simpleMapCoord';
+import SimpleCoordinate from './simpleMapCoord';
 import Mapbox from './mapbox/';
 import { Version } from './version';
 
diff --git a/packages/maps/src/map/map.ts b/packages/maps/src/map/map.ts
index b83e85a7f7..a01eb5c556 100644
--- a/packages/maps/src/map/map.ts
+++ b/packages/maps/src/map/map.ts
@@ -22,7 +22,7 @@ import { $window, DOM } from '@antv/l7-utils';
 import { inject, injectable } from 'inversify';
 import 'reflect-metadata';
 import { Version } from '../version';
-import SimpleMapCoord from './simpleMapCoord';
+import SimpleMapCoord from '../simpleMapCoord';
 import Viewport from './Viewport';
 const EventMap: {
   [key: string]: any;
diff --git a/packages/maps/src/mapbox/map.ts b/packages/maps/src/mapbox/map.ts
index 86213b0d12..43a8696383 100644
--- a/packages/maps/src/mapbox/map.ts
+++ b/packages/maps/src/mapbox/map.ts
@@ -36,7 +36,7 @@ const EventMap: {
   zoomchange: 'zoom',
   dragging: 'drag',
 };
-import { SimpleCoordinate } from '..';
+import SimpleMapCoord from '../simpleMapCoord';
 import { MapTheme } from './theme';
 let mapdivCount = 0;
 const LNGLAT_OFFSET_ZOOM_THRESHOLD = 12;
@@ -50,7 +50,7 @@ export default class MapboxService
   implements IMapService<Map & IMapboxInstance> {
   public version: string = Version.MAPBOX;
   public map: Map & IMapboxInstance;
-  public simpleMapCoord: SimpleCoordinate;
+  public simpleMapCoord: SimpleMapCoord = new SimpleMapCoord();
 
   // 背景色
   public bgColor: string = 'rgba(0.0, 0.0, 0.0, 0.0)';
diff --git a/packages/maps/src/map/simpleMapCoord.ts b/packages/maps/src/simpleMapCoord.ts
similarity index 100%
rename from packages/maps/src/map/simpleMapCoord.ts
rename to packages/maps/src/simpleMapCoord.ts