This project is located in open sea area,and the tidal current is strong and varies in horizontal and vertical directions significantly,which is dangerous for wharf construction and operation.It is the key technology of water area layout for how to lead the flow in order to satisfy the safety criteria for navigating,berthing and departing.By further study on natural conditions,and combined with the current model,we propose an original program of layout,which unites the diversion facilities and hydraulic structure.The results show that the layout functions are well,which can fundamentally solve the department of dock berthing of phase Ⅲ project,and provide some reference for shoreline development and construction under similar sea conditions.