The invention provides a graphene-based coating dispersion, which at least includes graphene or its derivatives, ceramic oxide or its precursor, fluorosilicon monomer or its polymer, water, wherein graphene and its derivatives are selected from graphite at least one of graphene, graphene oxide, graphene quantum dots, graphene oxide quantum dots, graphene microspheres, graphene oxide microspheres, nano-graphene, nano-graphene oxide, and functionalized graphene. The coating prepared by the coating dispersion of the present invention has good water repellency, oil repellency, antistatic property, abrasion resistance, adhesion and corrosion resistance, etc., and can be applied to the surface antifouling of bathroom, marine equipment, automobile, Anti-oil, waterproof, anti-corrosion, anti-wear and other protection. The preparation process of the coating dispersion liquid of the invention is simple, easy to control, low in cost and has broad application prospects.