With the development and utilization of open-sea islands and reefs,it is usually necessary to construct the corresponding large-size ro-ro wharfs in the large-scale refining and chemical base and power plant projects to meet the large-cargo transportation during plant area construction.We study the plane and vertical layout of ro-ro wharf in open sea macro-tidal range area,the berthing characteristics of ro-ro ships and the mutual adaptability of mooring system,and propose systematic technical solutions for the above technical requirements.It can provide references for similar engineering designs.