Abstract: In this paper, it was firstly analyzed the difficulties of fire prevention at working face under the conditions of high gas concentration,easy self-ignition and rockburst.Furthermore,it has pointed out the effect of rockburst on coal spontaneous combustion.Tests had been carried out to figure out the change regulations of the gassy index for coal spontaneous combustion of Hu Jiahe 401101 working face,which provided scientific evidences for forecasting coal spontaneous combustion.At the same time,the implementation programs of the fire-fighting technology and technical parameters during face mining period and stopped mining period were also discussed,the paper mainly focused on the comprehensive technology of fire prevention and extinguishment by sealing air leakage at upper and down-corner angle with precast block and covering a wide range of float coal in goaf with three-phase foam,as well as constructing isolation wall with gel.It was proved that such program can effectively ensure the mining safety,and has provided valuable experience for similar underground mines in fire prevention.