Jiangsu Jingangwan international logistics park is constructed in Lianyungang coastal deep soft soil, “8 m high-strength overload preloading combined dynamic compaction” scheme is first used successfully on container yard B for soft foundation treatment, which broke through significantly the overloading prepressing height in the local area before. The engineering case not only serves successful experience for the high-strength soft foundation treatment in Lianyungang city, but also verifies the feasibility of the high- strength soft foundation treatment. It may serve as reference for the construction of port area on coastal soft soil ground.