//1.将两个经纬度点转成投影点MAMapPoint point1 = MAMapPointForCoordinate(CLLocationCoordinate2DMake(39.989612,116.480972));MAMapPoint point2 = MAMapPointForCoordinate(CLLocationCoordinate2DMake(39.990347,116.480441)); //2.计算距离CLLocationDistance distance = MAMetersBetweenMapPoints(point1,point2);原文：http://www.cnblogs.com/lidongxiao/p/5148715.html