▎ 摘　　要

NOVELTY - Environmentally-friendly chromium-graphene composite coating electroplating solution comprises 100-120 g/l chromium chloride hexahydrate, 30-50 g/l ammonium formate and 15-20 g/l sodium acetate. USE - Used as environmentally-friendly chromium-graphene composite coating electroplating solution. ADVANTAGE - The electroplating solution does not cause harm to human health and natural environment. The method is simple and improves abrasion resistance and improves corrosion resistance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the environmentally-friendly chromium-graphene composite coating electroplating solution, comprising (i) taking the solute of chromium chloride hexahydrate, ammonium formate, sodium acetate, ammonium chloride, hydrogen borate, ammonium bromide, carbamide, lauryl sodium sulfate, and saccharin, and (ii) dissolving the solute in the plating solution in deionized water and stirring uniformly with a magnetic stirrer, stirring at 300-400 revolutions/minute, keeping the hot water bath to 70 plus minus 10, adjusting the pH to 3-5 with 10-20% hydrochloric acid; and (2) environmentally-friendly chromium-graphene composite coating is prepared by above mentioned method.