Abstract: 21141 Fully mechanized caving face in Qianqiu Coal Mine has disaster of high gas, medium rockburst hazard, spontaneous combustion. Aiming at the problems of easily spontaneous combustion and gas overrun at working face during cut-hole driving, installation and initial mining, some fire precaution measures and techniques such as strengthening the support of working face, eliminating stress concentration, prediction of spontaneous fire, filling fireproof material, gas drainage and gob increasing permeability gas drainage were adopted. These realized safe mining of caving face.