Deputy Director-General Sanya Coastal Defence and Port Bureau is the deputy director-general, and Sanya Coastal Defence and Port Office is the administrative organ of the municipal government in charge of the city's coastal defence and port management and anti-smuggling work department, which is managed by the municipal government office. Responsible for the comprehensive management of the first-class ports in Sanya. The business management scope of Sanya Port Area is the administrative area of "two cities and four counties" in southern Hainan.