The invention relates to the anticorrosive paint field, and specifically relates to a preparation method of a dual component aqueous epoxy graphene anticorrosive paint. An epoxy polyether addition product is used to emulsify epoxy resin to prepare epoxy resin emulsion. Amino polyether, polyamine, and epoxy resin carry out reactions to prepare a polyether modified epoxy amine addition product curing agent. The epoxy resin amine addition product, zinc powder, pigments, fillers, and graphene are used to prepare zinc powder slurry, which is taken as an A component. A silane coupling agent and silicate carry out hydrolysis to prepare silicate sol, the silicate sol and epoxy resin emulsion are mixed, and the mixture is taken as a B component. A proper amount of graphene is used to modify zinc powder slurry, silicate sol is used to modify epoxy emulsion, two modifications obviously improve the anticorrosive performance of an aqueous zinc enriched primer, a same anticorrosive effect is reached, and the using amount of zinc powder is largely reduced. The obtained aqueous primer has the advantages that the VOC content is low, the pollution of organic solvents and zinc powder to the environment is largely reduced, and the safety hazards and fire are eliminated. The storage stability of paint is good, the paint is safe and convenient for construction, the coating can be quickly dried, theadhesion force of coating is strong, and the anticorrosive performance is strong.