This paper discusses the design approach for the vertical antislide structure of the anchor cable and pilewall combination through theoretical analysis of the Bishop strip method based on limit equilibrium theory， selection of the sliding surface of the slope by use of the Lizheng Rock Soil design software and stability analysis and calculation of the residual downsliding force in the context of the slope support project for a road under construction in the logistics port area of Liudong New District of Liuzhou City， where the elevation difference of the slope caused by the design and construction of road cutting is about 35m high. Combination of the pile crosssection size and rebars is conducted under the bearing capacity limit conditions; meanwhile， the slope surface treatment， protection and drainage scheme above the vertical support structure are also introduced. It may provide reference for the high slope support and treatment projects in road construction in the future