A searching method of slide path in the rock mass based on domain-divide statistics model of discontinuities and the rock mass stress field is presented in this paper. Firstly, producing method of statistics model of discontinuities and smoothing method of FEM stress field in the rock mass are described. Then the formulas of slide resistance reserve in specified oritentation and local location in the rock mass based on Einstein’s theory and the rock mass stress field is developed. Finally, the concrete seaching method and some numerical results are shown.