Abstract:As the global marine environment is still in a severe state, clean energy, as a substitute for fossil energy such as coal and oil, has been highly valued by international organizations and countries, while offshore wind boasts notable advantages in producing green power. In the past 30 years, offshore wind in the world, particularly in the Eurasian region, has developed rapidly, and it has been moving into deeper waters along with technological advances. China""s offshore wind has ranked first in the world after nearly ten years of development, with industrial clusters formed in coastal areas, continuously improved installed capacity, and reduced cost of project construction. This paper adopts a comparative analysis method to study the development, policy focus, similarities and differences of offshore wind in China and abroad, and through field investigation, sorts out and summarizes the problems faced by China""s offshore wind power industry in terms of macro-control, technological innovation, cost-effectiveness, spatial layout, operation and maintenance, and sets out that the sustainable development of offshore wind power should be achieved by focusing on the economical and intensive utilization of marine resources, taking independent innovation as the growth driver, improving policy measures and management systems, and working towards proper subsidies and industrial integration.