Abstract: In view of the problems of low coal mining rate and serious mining damage under building, mining method is studied on the coordinated mining mixed with backfilling and keeping method.Taking the 7^th mining district of Qianjiaying coal mine as the research object, and used the similar simulation test as the research method.It's used the "mining-backfilling-keeping" method to mining the No.7 and No.12 coal seam, and then compared and analyzed the result with the caving mining.The experimental results show that after the coordinated mining, the development height of the water conducted fracture zone is 17 m, the slump angles are 59° and 64°, and the loose layer compression after mining disturbance is 1.34 mm/m, the surface subsidence rate is 0.11, and so, all indicators are smaller than after caving mining.The research results show that the coordinated mining mixed with backfilling and keeping method not only improves the mining rate, but also controls the deformation of overlying strata and surface to some extent, and can effectively reduce the damage of surface facilities.