The invention relates to a vinyl anticorrosion coating material and a manufacturing method thereof. The method includes: adding bisphenol A type epoxy vinyl ester resin into styrene, a co-polymerization solution containing an acid group, silicone oil, a polyacrylate solution and aminopropyltriethoxysilane, dispersing, dissolving, stirring at a high speed, adding fumed silica, titanium dioxide, barite, silica powder and carbon black under stirring, grinding by a sand mill to prepare a liquid mixture, adding glass flakes into the liquid mixture, dispersing at a high speed, and adding a modified urea solution during the dispersion step. A B solution comprises cobalt naphthenate and a styrene mixed solution. A C solution comprises methyl ethyl ketone peroxide, methyl ethyl ketone and a phthalate mixed solution. When the coating material is to be used, an A solution, the B solution and the C solution are mixed. A coating of the coating material has excellent adhesive force, impact resistance, wear resistance, resistance to heat and humidity, resistance to sea water and salt fog resistance and long working lifetime, and is suitable for splashing-zone and underwater corrosion resistance of ocean platforms, marine work steel structures, and the like.