The invention discloses a low-surface-energy water-based epoxy anticorrosive coating and preparation and application thereof. The molecular structure of the coating contains structures such as epoxy groups, polyether, silicon fluoride and graphene; in the stage of emulsifying epoxy resin of the coating, the coating has excellent aqueous property and high emulsifying capability owing to a self-emulsifying aqueous epoxy curing agent, the coating has good compatibility with the epoxy resin, and the stability of emulsion is improved. In a curing stage of modification of a graphene oxide modified coating, it is ensured that the self-emulsifying water-based epoxy curing agent does not separate out from a coating layer to form a stable coating layer; a flexible micro-region is formed by flexiblelong-chain polyether in the coating layer, so that the mechanical property of a coating film is improved; by silicon-fluorine sol, the surface energy of the coating film is reduced; graphene is grafted into the molecular structure through chemical bonds, after the dispersion performance is improved, the graphene can cover a metal surface efficiently, and the corrosion resistance of the coating layer is improved. Therefore, the coating provided by the invention has excellent properties of adhesion, hardness, acid and alkali resistance, water resistance and the like after film formation, variouscomponents are compatible well, and the coating can be used for metal parts and the like.