<p>The snowflake sheet pile is a newly developed pile with a large specific surface area, which can increase the vertical bearing capacity of a single pile by providing extensive side friction to the pile shaft. The pile offers high strength, excellent flexibility, and requires relatively few materials, making it suitable for engineering applications. Vinyl plastic material has been developed for the snowflake pile. To understand the mechanical properties of the snowflake vinyl plastic pile, this paper uses the finite element method and analyzes the numerical results, considering the boundary conditions and equilibrium state of the soil. Additionally, the closed-form "<i>τ-z</i> curve" (Hyperbolic Load-Transfer Method) is employed to analyze the axial displacement of the snowflake vinyl plastic pile under vertical loading conditions. The τ-z curve represents the load transfer mechanism and can predict the load–displacement behaviors of the pile using the load transfer method. These research findings can serve as a foundation for the future design of snowflake vinyl plastic piles.</p>