The invention belongs to the technical field of metal anticorrosion coating preparation, and particularly relates to a quaternized lignin/graphene/carbon nano-tube compound anticorrosion coating, a preparation method thereof and an application of the coating. According to the method, quaternized lignin graphene/carbon nano-tube dispersion liquid is prepared by ultrasonic peeing dispersion, and thedispersion liquid, waterborne epoxy resin and waterborne curing agents are mixed to prepare the quaternized lignin dispersed graphene/carbon nano-tube compound waterborne anticorrosion coating. According to the method, by the aid of renewable biomass material lignin, quaternization and amphipathy of the lignin and pi-pi action between the lignin and graphene, hydrophobic graphene and carbon nano-tubes can be uniformly dispersed in the waterborne epoxy resin, the graphene in the coating can prevent corrosive small molecules from entering in a layer-by-layer manner, and corrosion of a substrateis delayed. The carbon nano-tubes are added, the carbon nano-tubes and the graphene have a synergetic anticorrosion function, and the coating can be used for anticorrosion of surfaces of metal and building materials and shows good capacitive reactance arc.