Abstract: Based on the functions of safety monitoring, fire alarm, information feedback and fire linkage, the mine fire pre-warning system is established. The gas analysis, optical fiber temperature sensor and infrared image technology are separately applied to achieve the forecast of mine fire. In this warning system, using leaked-cable communication system, staff can convey fire information to miners working in underground. Finally, linking underground fire extinguishing system, inert gas fire extinguishing system and fire extinguishing system into the mine fire warning system, the mine fire automatic fire extinguishing function is realized.