Wireless Mesh Network is a new kind of wireless communication technology widely used in near-field communication, has obvious application advantage in position information sharing service. The paper introduce WMN's technical characteristics used in the fields of Wireless Personal Area Network, analyze WMN's application advantage compared with Ad hoc Network, discuss four kinds of WPAN's traditional application mechanism based on WMN. Based above, describe a new kind of WPAN standard based on WMN called IEEE 802.15.5. Then, put forward a WMN's application case used in vehicle navigation and positioning, has important practical guiding significance of instructing WMN used in the fields of position information sharing service.