Abstract: According to the complex geological conditions of 10301 fully mechanized caving face in Jining No. 2 well, starting from the spontaneous combustion conditions of coal, the reasons for the spontaneous combustion of the goaf and two roadways during the end of the 10301 fully mechanized caving are analyzed. According to the actual situation of the working face and the characteristics of fire prevention technology, the general idea of “deep oxygen control, shallow temperature control, oxygen reduction and temperature suppression” was proposed. Fire prevention technologies of rail, transport two ends laying duct cloth, water glass colloid materials injection, nitrogen injection, liquid carbon dioxide injection and other fire technologies were developed. It has been proved that this set of technical measures can effectively ensure the safe recovery of the supports of the 10301 working face.