Abstract: A copper mine in Xinjiang has been mined for many years, the mining methods are sublevel drilling stage open stope mining and comprehensive mining, a certain scale of goaf has been formed in the mining process, which has caused great potential safety hazards to future production. In order to eliminate or reduce the harm of goaf to mine safety, aiming at the current situation of goaf, through goaf investigation, engineering geological investigation, goaf stope stability research, goaf buffer layer thickness research, safety countermeasures research and so on, this paper puts forward a goaf treatment scheme combining "filling, collapse and sealing" and the ground pressure monitoring scheme combining conventional ground pressure and single channel acoustic emission. It can provide decision-making basis and technical guarantee for mine goaf governance and safe and orderly production, and can also provide some reference for mine goaf governance under similar conditions.