▎ 摘　　要

NOVELTY - Preparation of graphene metal composite plate comprises polishing outer surface of metal plates using grinding machine, pouring diluted hydrochloric acid solution into cleaning tank, soaking, heating, clamping metal plate, repeatedly washing by flowing distilled water, and washing for 1-3 minutes, drying metal plate, adding prepared graphene into heating furnace, opening temperature of heating furnace, completely dissolving graphene, closing power supply of heating furnace, taking out graphene, uniformly coating graphene on outer surface of metal plates, attaching one side of metal plate coated with graphene to each other, rolling, entering metal plate into rolling machine, rotating direction opposite to roller, extruding, and rolling. USE - The method is useful for preparing graphene metal composite plate. ADVANTAGE - The method improves the stability of metal plate composite, improves the strength of the metal plate connection part, and prevents the condition of breaking.