System for mine safety monitoring and disaster emergency communication and method for operating the same

This invention relates to a mine safety monitoring and disaster emergency communication system, in addition to an operating method. Said system comprises the electric connected stamina network switch-in, gateway apparatus, on-site bus, wireless device switch-in, and the wired network system which comprises on-site bus monitoring device and which is electric connected with the on-site bus; several mobile wireless senor junctions are electric connected with the wireless device switch-in of the wired network system through the wireless radio-frequency communication link circuit; it has a wireless sensor communication device in the mobile wireless sensor junction . The method comprises two modes; when mine working normally, the net is safety monitoring mode, and the wireless sensor node will provides orientation, tracing and communication function as a moving object; when urgency disaster happens, the wired communication mode become invalid, and the wireless sensor junction will open self-organization to form emergency communication mode.