The invention relates to a chlorinated rubber coating used for a marine environment and a production method. The production method includes the steps of adding modified chlorinated rubber resin, modified hydrogenated bisphenol F-type epoxy resin and epoxidized soybean oil to a mixed solvent composed of dimethylbenzene and solvent oil, adding modified titanium dioxide, feldspar powder, talcum powder, silicon micro-powder, mica powder, phthalocyanine green, chrome yellow, polyamide wax, chlorinated paraffin, a hydroxyl triazine derivative and epoxy chloropropane and the like to the mixed solution, mixing, stirring and grinding the mixed solution to obtain the high-glossiness weather-resistant chlorinated rubber coating used for the marine environment. The marine environment can be uniformly stirred and directly used for coating surfaces. The coating allows construction at -20 DEG C, is excellent in storage stability, anti-ultraviolet light aging property, adhesive force, corrosion resistance of acids, alkalis and salts and sea water scouring resistance, and can be used for corrosion resistance of offshore structures such as ships, ocean platforms, docks and the like.