Abstract: Taking the shallow buried depth 5-20101 working face in Qinglongsi Coal Mine as the background, the theoretical research and field measurement are used to study the distribution of “three zones” in goaf. The results show that, after coal mining, according to the distribution of pressure in the goaf, the goaf caving zone is divided into natural accumulation zone, crushing accumulation zone and recompaction zone, and there is a basic correspondence between these three zones and the three zones of goaf spontaneous combustion. According to the test results of “three belts” in goaf, it is concluded that the minimum safe mining speed of working face is 9.5 m/d. In the mining process of working face, anti-fire measures such as grouting fire prevention, nitrogen-injection fire prevention, air leakage fire prevention and extinguishing, and spraying blocking agent can be adopted to reduce air leakage in the goaf and oxygen concentration around the goaf, so as to guarantee safe mining of working face.