Tiaozhoumen anchorage is a large-scale anchorage directly serving the core port area of Ningbo Zhoushan Port.The proposed anchorage is located in the typical islands and reefs ports in China.The surrounding conditions of anchorage are complex and restricted by many factors,and it requires a large number of anchorage positions and different types of anchorages,so the anchorage layout is complex.This paper analyzes the service port of anchorage and its restrictive factors,and the location of anchorage is also demonstrated.Through the comprehensive calculation of anchorage types and numbers,we calculate the anchorage layout and anchorage capacity based on the layout of anchorage partition,and design the traffic organization of ships entering and leaving the anchorage.This paper gives a design method and solutions to key technical problems of large anchorage in complex islands and reefs waters,which can provide reference for similar projects.