The utility model discloses an anticorrosive coating and composite anticorrosive coating structure used for an offshore wind generating set. The composite anticorrosive coating structure comprises a zinc sprayed layer (1) and a paint sprayed layer (2), and the outer surface of the zinc sprayed layer (1) is tightly covered with the paint sprayed layer (2). According to the composite anticorrosive coating structure, paint spraying processing is carried out on the basis of the zinc sprayed layer, the zinc sprayed layer is protected and reinforced accordingly, the anticorrosive capacity of the whole coating is improved, and the composite anticorrosive coating structure is just suitable for non-installation related faces which are exposed for a long time and are free of conductive requirements and high in anticorrosive requirement; by means of the coating system, protection of equipment of the wind generating set in the severe salt-spray environment can be improved, and the anticorrosive capacity of the wind generating set can be improved.