The invention relates to rail transit wireless communication terminal equipment based on TETRA. The equipment is a locomotive station, is respectively and wirelessly communicated with a CAD server, a dispatching station, a fixed station, other locomotive stations and outside calls through wireless network coverage, and comprises a control box, a host, an antenna, an application layer program, a recording program, an interface management program and a call service interface program. The control box comprises a displaying and operating unit, a control unit and a recoding unit; the host comprises a power supply unit, a switchover unit and a TETRA module. Compared with several kinds of digital trunked systems, the rail transit wireless communication terminal equipment based on the TETRA has the advantages of being complete in commanding and dispatching function, flexible in networking mode, high in antijamming capability, high in spectrum utilization rate, large in system capacity, capable of providing voice and data communication service and flexible network management functions, high in encryption and off-Internet function and the like, can achieve an off-Internet direct connection mode and end-to-end encryption and meets the demands of providing high-quality locomotive stations for current light rail transit.