For the construction of the wharf on the soft ground may cause structural cracking or even slip instability and other issues,we discuss the characteristics of the application of the three major wharf types at home and abroad on the soft soil foundation.Based on the design of Nantong Port，which is combined with the geological conditions of the project area of the terminal structure of the type of comparison study,we put forward a type of structure-cement mixing pile composite foundation+closely packed piles composite,and analyze its mechanical properties.The results show that the composite piles can not only solve the problem of the construction of the piles on the weak soil foundation,but also have the advantages of not occupying the pond,the construction speed,the low cost and the influence of the wind and waves.