This paper presents one of Vehicle Management System base on Web-GIS technology, which has the capability of using all kinds of GPS equipment being made by different company, and aslo can support the customized Vehicle Management System that is constructed for the demand of all kinds of consumer(individual and group).To generate the Web-GIS map, it uses the map generating engine of MapXtreme. To be compatible with different equipments, it uses uniform normalized protocol of communications and the network of GSM. It uses the technology of EJB and B/S for the expansibility. All of these technology build up the expansibility of system and the operating system with Web and reduce the cost of maintenance. The utility of system is aslo enhanced.