The riverbanks of mountainous rivers are steep,the river cross-section is narrow,and the water level fluctuates greatly.In view of problems such as long shoreline,large amount of earthwork and high project investment,we propose a wharf planar layout type combined steps with S-shaped ramp,which can meet the daily travel needs of mountainous residents and the transportation of production and living materials,and overcome the shortcomings of conventional car-driven ramp wharf.The comparison of engineering examples shows that the wharf layout with steps combined with S-shaped ramp is more adaptable to the terrain characteristics of mountainous rivers.The wharf layout can effectively reduce the occupation of shoreline and the amount of excavation and backfill of earth,reduce the difficulty of construction,and save project investment.