Aiming at the condition, the collapse column of working face x12 of Zhangcun Coal Mine 2502, this paper uses the FLAC3D numerical software simulating collapse column deformation in coal seam and stress change in the advancing process of working face to study, the results show that: in the wake of the mining, it is obvious that the gradual emergence of stress concentration phenomenon.During the collapse column, damage range of roof of working face is about 54m, and the footwall is about 22m. From mining to collapse column 35m, which affected by mining action at the same time.It can be deduced that the combination of coal mining machine cutting blasting and crushing could force a passage when we carry on the feasibility analysis to it.The engineering practice indicates that the project guarantees the continuous advancing working face, not only can effectively control the influence of the collapsing column on the production, improve the recovery percent of coal resources, but also can provide relevant technical guidance for the collapse column working face in later as well.