Manufacturing method of anticorrosive coating

The invention discloses a manufacturing method of an anticorrosive coating. The manufacturing method comprises the following steps that 1.5-4 parts by weight of aniline monomer, 0.5-2 parts by weightof polyoxyethylene-polyoxypropylene-polyoxyethylene, 0.5-20 parts by weight of acid solutions and 159-197 parts by weight of liquid water are mixed to form first mixed liquid; 0.5-15 parts by weight of starting agents at 0-30 DEG C are added to the first mixed liquid to form a plurality of microstructure templates in the shape of leaves, branches or flowers; 0.005-0.015 part by weight of the microstructure templates, 0.5-2 parts by weight of the aniline monomer, 1.5-12 parts by weight of the acid solutions, and 185.2-197.5 parts by weight of the liquid water are mixed to form second mixed liquid; and 0.5-0.8 part by weight of the starting agent is added to the second mixed liquid to form the anticorrosive coating. According to the manufacturing method of the anticorrosive coating, the anticorrosive coating has the