The offshore large crude oil terminal project is generally located in the open sea with large waves and water depth,and the wharf is mostly butterfly.The pier foundation type is multiple selection and complicated,and the construction is difficult.Taking Yangpu 300,000 ton crude oil terminal and transportation facilities project in Hainan Province as an example,this paper introduces the structure selection of offshore large-scale crude oil terminal’s marine structure on cohesive soil.It also demonstrates the lifecycle proposal for the high-pile pier foundation and caisson pier foundation in aspects of structure design,durability design,construction technology,later maintenance and cost.