▎ 摘　　要

NOVELTY - Preparing macro functionalized graphene comprises: (i) adding the graphite based material and milling balls into a ball milling tank under the protection of inert gas, and sealing, (ii) mixing the components in the ball mill tank, and ball milling in the planetary ball mill for 0.2-60 hours, (iii) separating the ball and the sample to obtain the graphene, and (iv) milling the graphite-based material or the obtained graphene with functionalized molecule for 0.2-60 hours. USE - The method is useful for preparing macro functionalized graphene. ADVANTAGE - The method is simple, and realize large-scale production of the graphene functionalized product (claimed) quickly, and has low cost and easy operation.