The invention relates to steel structure anticorrosion processes, in particular to an efficient anticorrosion method for a wind generation set support structure used in a marine environment wind power plant. The wind generation set support structure in the wind power plant in a to-be-constructed area is subjected to surface treatment, anticorrosion paste smearing, anticorrosion strip pasting, protective cover coating and gel coat coating sequentially, and the purpose of efficient anticorrosion of the wind generation set support structure is achieved. With the adoption of the method, the anticorrosion effect is excellent, the anticorrosion performance can reach 30 years or above, construction is convenient, surface treatment is simple, operation can be conducted with damp and water, good leakproofness and impact resistance are achieved, and the method is suitable for anticorrosion of structures of various shapes. The efficient anticorrosion method is high in construction efficiency, low in cost, large in application and popularization market, and high in economic benefit.