In the existing high-piled wharf, the pile cap or beam connected to the pile foundation generally adopts the cast-in-place process.Based on the wharf project in Xuwei Port area of Lianyungang Port, this paper adopts a superstructure with a slot-type prefabricated component connected with the pile foundation.The pile-core embedded steel is inserted into the built-in cavity of the component and connected with the pile foundation through the post-pouring cavity node.The slot-type component is a new structure, so this paper analyzes its prefabricated construction process and develops a mold disassembly-free chiseling construction process.The results show that this process can solve the technical problems of mold supporting and disassembling in the cavity, improve the prefabricated efficiency and quality of the new structure, and provide a reference for similar projects in the future.