The invention relates to a wireless communication base station, including a first wireless communication module, a base station control module and a network interface. The invention also relates to a wireless communication mobile terminal, including a second wireless communication module and a terminal control module. The invention further relates to a wireless communication system, including the base station and mobile terminal. The base station, the mobile terminal together with the system provide a device to conduct running fix and speech communication in a small range, with simple laying work and low cost. The invention further relates to a method combining the mobile terminal ID inquiry and speech communication in the wireless communication system, with specific steps: determine whether the wireless communication modules of both the terminal and the base station are provided with modules working on speech communication modes; if yes, then execute the speech communication process of the terminal through the base station; otherwise the wireless communication module of the base station works on ID inquiry mode, and execute ID inquiry process between the base station and the terminal; the method provides a wireless communication method with an accurate locating ability, which can combine with speech communication.