Abstract: Floating offshore wind turbine equipment has gradually become a hot topic in the development of deep-sea renewable energy. However, there are still a series of technical difficulties and challenges in the commercialization of floating offshore wind turbine. This study systematically combs the key technologies for design and analysis of floating offshore wind turbine equipment. The solutions and analysis methods are put forward regarding six aspects including overall performance analysis, structural global strength, mooring system design, fatigue strength analysis, stability check and dynamic cable design. A set of useful conclusions and suggestions are given through the introduction of actual domestic floating offshore wind turbine engineering project. Engineering exploration and practice are performed on the development of floating offshore wind turbine equipment in China, and it is expected to provide useful reference for the development and expansion of China's floating offshore wind turbine technology.

Key words: floating offshore wind turbine equipment, ocean engineering, renewable energy development, overall performance, structural global strength, mooring system, fatigue strength; platform stability, dynamic cable, engineering exploration and practice.