▎ 摘　　要

NOVELTY - Preparation of a metal-graphene composite coating comprises preparing metal-graphene composite particles by adding graphene powder, a metal powder, a process control agent, and grinding balls in a mechanical ball milling device, adding an inert protective gas, ball-milling at 200-300 revolutions/minute for 2-8 hours to obtain a graphene sheet structure adhered to a surface of the composite particles; subjecting a substrate to surface degreasing and roughening; and depositing the metal-graphene composite particles in a composite coating on the substrate. USE - Method for preparing a metal-graphene composite coating. ADVANTAGE - The method is simple and inexpensive. The metal-graphene composite coating has a compact structure, corrosion resistance, friction resistance, high mechanical strength, and antibacterial and biofouling resistance.