This study focuses on a specific type of two-step planing hull, conducting model tests in calm water at different speeds. Numerical simulations are performed using CFD methods, using the experimental data as a benchmark to compare model resistance, heave and pitch angle, thereby validating the effectiveness of the numerical method. The arc-shaped step is changed into two kinds of step forms: diagonal and right-angle, and CFD method is used to carry out the research on the taxiing performance of high-speed hulls with different step forms. The results show that the resistance performance of the arc-shaped step planing hull is superior to the other two configurations. However, it does not have a significant advantage over the diagonal step planing hull, with a maximum drag reduction effect not exceeding 5%. Additionally, the pitch angle and heave of both the arc-shaped step and the diagonal step are relatively close. The resistance performance of the right-angle step has certain advantages at low speeds, but at high-speed sliding situation, the resistance is significantly larger, and both the pitch angle and heave are smaller. This study provides data support for the design of high-performance multi-step planning hulls.