Through improving the finite element method of anti-sliding stability on simple sliding surface and applying it to the complex foundation surface so as to provide a reference for the finite element method of anti-sliding stability calculation of similar structure.The paper used ANSYS to establish two-dimensional finite element model of high guide wall on the complex foundation surface,and analyzed the anti-sliding stability of structure with five schemes in order to provide the basis for the selection of anchor cable reinforcement scheme and the safety assessment of structure. The Results show that the scheme of lateral tilt anchor cable should be taken and the structure can satisfy the requirement of anti-sliding stability in run-time under this scheme. The calculation method of anti-sliding stability has been applied to practical engineering and has a strong suitability and a certain reference value.