diff --git a/src/constants.js b/src/constants.js
index 9a84ee3..6824782 100644
--- a/src/constants.js
+++ b/src/constants.js
@@ -8,7 +8,7 @@ export const PI = 3.1415926535897932384626; // PI
 export const a = 6378245.0; // 北京54坐标系长半轴a=6378245m
 export const ee = 0.00669342162296594323;
 
-import _proj4 from '../node_modules/proj4'
+// import _proj4 from '../node_modules/proj4'
 import _ol from '../node_modules/openlayers'
 // import _olx from '../node_modules/openlayers/externs'
 // import _olx from '../node_modules/openlayers/externs/olx'
@@ -16,6 +16,6 @@ import _ol from '../node_modules/openlayers'
 import _config from './config/config'
 
 export const ol = _ol;
-export const proj4 = _proj4;
+// export const proj4 = _proj4;
 // export const olx = _olx;
 export const config = _config
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
index 425deb7..76e519e 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,6 +1,6 @@
 const HMap = {};
 HMap.version = require('../package.json').version;
-import {ol, proj4} from './constants'
+import {ol} from './constants'
 import Map from './map/Map'
 import Layer from './layer/Layer'
 import Feature from './feature/feature'
@@ -12,7 +12,7 @@ import Measure from './plugins/Measure'
 import MeasureTool from './plugins/MeasureTool'
 
 HMap.ol = ol;
-HMap.proj4 = proj4;
+// HMap.proj4 = proj4;
 HMap.Map = Map;
 HMap.Layer = Layer;
 HMap.Feature = Feature;