Abstract: Graphene/organic polymeric composite coating materials have superior barrier properties compared with pure polymeric materials. However, due to high surface energy and intermolecular force between graphene, the potential application of graphene in anticorrosion and other fields is limited. In this paper, a fluorinated acrylate copolymer was synthesized by conventional free radical copolymerization, and then acetylized graphene oxide was synthesized by modifying graphene oxide with propargylamine. Then, the terminal cyano group of fluorinated acrylate copolymer was grafted onto the surface of acetylized graphene oxide by covalent bond through click chemistry reaction. Hydrophobicity analysis indicates that the water contact angle of the fluorine-containing copolymer functionalized graphene is 153°, and the water contact angle is increased to 171.3° when the prepared functionalized graphene is applied to the steel-plate substrate. The scanning electron microscope indicates that the 300-600 nm hemispherical grafted part is grown on the alkynylated-graphene surface. The fluorine-containing copolymer functionalized graphene/epoxy resin composites are applied to the carbon structural steel, and the corrosion protection performance is characterized by both Tafel curves and electrochemical impedance spectroscopy. The results show that the current density I_corr of the prepared composite coating with fluorinated graphene content of 0.5wt% is the lowest (8.872×10⁻⁹ A/cm²), which is 1-2 orders of magnitude lower than that of other coating samples. In summary, the coating materials prepared in this experiment have excellent anticorrosion properties. This research provides a new strategy for the development of graphene anticorrosion coating materials.