The utility model discloses a mining intrinsic safety type switch. A switch mainboard comprises a switch chip module, two photoelectric conversion modules, a network electric signal isolation module, two optical ports possessing the ring network functions and two electric port modules. The network electric signals enter from the electric port modules, are transmitted by the network electric signal isolation module to the switch chip module, and are transmitted out by the electric port modules or are transmitted out by the optical ports possessing the ring network functions after passing the photoelectric conversion modules. The optical signals enter from the optical ports possessing the ring network functions, are transmitted by the photoelectric conversion modules to the switch chip module, and are transmitted out by the electric port modules or are transmitted out by the optical ports possessing the ring network functions after passing the photoelectric conversion modules. A power supply module supplies power to the optical ports possessing the ring network functions and the switch mainboard. The network electric signals are transmitted remotely by the photoelectric conversion, thereby guaranteeing the transmission quality. Meanwhile, the intrinsic safety filtering is carried out on the network electric signals, thereby guaranteeing the safe production of a mine.