Abstract: In order to solve the problem of gangue discharge on the ground in the future of Jingu Coal Mine and realize the safe and green mining of the coal mine, the technology of gangue backfilling mining is proposed, and the gangue backfilling mining in the fully mechanized mining face of Jingu Coal Mine is designed from four aspects: the processing and transportation of gangue from the ground, the transportation of gangue underground, the mining and filling of gangue in the working face, and the retaining of roadway along the goaf. The results show that the gangue backfilling mining in the fully mechanized mining face of Jingu Coal Mine can not only meet the control requirements of rock stratum deformation and surface movement, but also comprehensively utilize industrial wastes, avoiding the cost of large-scale land acquisition and environmental treatment.