Abstract: The reasonable design of offshore wind turbine foundation structure is the basis for the safe operation of offshore wind turbine.In the extremely harsh marine environment,anti-corrosion design has become an important part of foundation design.For the steel pipe pile foundation used in offshore wind power engineering,the important ways of steel structure anticorrosion include anticorrosive coating and sacrificial anode protection.Effective and reliable anticorrosive coating supporting system and reasonable arrangement of sacrificial anode protection will be important measures to ensure the effective life time of the foundation.Combined with the offshore wind power project in Dalian Island,the corresponding anti-corrosion coating supporting system is proposed,and the layout scheme and design calculation of sacrificial anode are analyzed and studied in detail.