Abstract: Conventional anti-sliding piles have rectangular cross-sections. Their concrete in tension part cannot give the best performance due to concrete has low tensile strength. This paper redesigns the rectangular cross-sections by decreasing the tensile area and increasing the compressive area. The compression strength of the concrete can get better use. For that, the flexural capacity and flexural rigidity of the pile cross-sections can be enhanced. The soil arch effect can also be enhanced. This paper further presents the contrastive analysis of the numerical simulation of the piles with rectangular cross-section and special cross-section. The results confirm that the soil arch effect is enhanced. They also show that the pile with special cross-section has reduced the soil from the possibility of slip out. This article can provide theoretical reference for the anti-slide pile design.