The simulation of ground-water seepage field with higher hydraulic grade is difficult. Based on the analysis of the hydrogeological condition in the mineral region, this paper simulates the ground-water seepage field in the nearly region of the mine by use of analytic method base on Darcy's law, and simulates the ground-water seepage field in the periphery of the mine by use of finite element analysis method, then ingeniously combines with the two simulations to achieve the ground-water seepage field simulation of the mineral deposit, and get good results.