Based on the fact that the deep ore body and surrounding rock of the Songxian Gold Mine occur in the fractured alteration zone,experimental research on the upward approach and filling mining method is carried out.In order to ensure the mine safety and highly efficient mining,ANSYS numerical simulation software simulated and studied the roof vertical displacement,stress variation status with the one-step approach width of 3.0 m,3.5 m and 4.0 m,two-step width of 3.0 m and 3.5 m and level height of 3.0 m and 4.0 m.The results show that the maximum vertical displacement occurs in the rock on the top of the stope,and the central settlement is the greatest in the stope.The stress produced by the two-step approach of each scheme is significantly higher than that of the one-step approach.With the increase of the width and height of the tunnel,the vertical displacement and stress of the stope are increasing gradually.The value of each plan and the need of production organization are summarized,and the stope structural parameters are determined as follows:the one-step is 3.5 m×3.0 m,and the two-step is 3.0 m×3.0 m.