▎ 摘　　要

NOVELTY - The utility model claims an anti-corrosion coating structure for bridge steel structure, the anti-corrosion coating structure comprises a primer layer laminated and coated on the surface of the steel substrate from inside to outside sequentially an intermediate layer and a finishing coat layer; wherein the primer layer comprises a zinc-aluminium pseudo-alloy layer; the middle layer comprises a first composite layer, the first composite layer is composed of a composite of graphene and polysiloxane; The top coat layer comprises a fluorocarbon resin layer. The technical solution of the utility model uses the zinc-aluminium pseudo-alloy layer, the composite layer structure of graphene polysiloxane and the coating system of the fluorocarbon resin layer effectively prevent the bridge steel structure from corrosion.