Taking the sheet pile wharf project on soft soil foundation for example,we propose the sheet pile wharf design scheme using underground continuous wall as the front wall and concrete beams to connect the front and rear as a whole is proposed.Considering the material nonlinearity of the soft soil foundation,foundation soil adopts Duncan-Chang model.The sheet pile wharf stress distribution and deformation characteristics are analyzed by the finite element method.Moreover,front wall buried depth and the length of prestressed high strength concrete pile belonging to structure design scheme of the sheet pile wharf is researched.Different front wall buried depth and prestressed high strength concrete pile length can impact the sheet pile wharf stress and displacement.By analyzing the impact,the optimization result of front wall buried depth and prestressed high strength concrete pile length can be decided.Those results provide the basis of sheet pile wharf structure optimization in engineering practice.