您好，您应该是使用的是classic的地图框架吧，我这边测试 var point = new SuperMap.Geometry.Point(0, 0);
pointFeature = new SuperMap.Feature.Vector(point);
pointFeature.style = {
pointRadius:50,
externalGraphic:'
https://iclient.supermap.io/examples/classic/images/marker-gold.png'
};
vectorlayer.addFeatures(pointFeature);
var dragFeature = new SuperMap.Control.DragFeature(vectorlayer);
//map上添加控件
map.addControl(dragFeature);
//激活控件
dragFeature.activate();是可以进行正常移动的您也可以在官网实例进行按照我的方式进行修改然后运行
