In order to ensure safe and efficient mining,according to the mining technical conditions of the ore body and the physical and mechanical properties of the ore rock,the Flac^3D software was used to carry out numerical simulation analysis on the different stope structure parameters of 4 mining plans.The results show that when mining ore bodies above the elevation of 1 235 m,the offect is the best with stope structure parameters as fallows:the length of the stope is 40 m,the continuous pillar of 2 m is left between ore rooms,and the top and bottom pillars are 2 m;when mining the ore body below the elevation of 1 235 m,the backfill mining method is the best;the mining concept of safe,efficient,low-cost,low-loss is met.The research achievement provides theoretical guidance for the safe production of the mine.