A fully automated container port is to be built in Venice offshore,Italy.One of the key technologies of the project is to select a proper structural type for the wharves to resist the action of deep and highly compressible soil and peat layers.The paper compares the differences of 3 structures,i.e. the high-piled wharf+ combined pile platform connecting shore structure,gravity caisson structure,full pile-supported beam and slab (high-piled jetty + high-piled yard)structure,analyzes them by the finite element analysis software,and proposes the structural type of full pile-supported beam,which is suitable for the geologic condition and can meet the application requirement due to its mature technology,little risks and low cost.