▎ 摘　　要

NOVELTY - The preparation of copper-graphene composite material involves (i) mixing graphene and copper to obtain spherical object with diameter of 0.5-1 cm, (ii) placing copper in a vacuum device, evacuating vacuum device to 10-4-10-3 Pa, heating, where the amount of graphene is 0.1-5% of the total mass of graphene and copper, (iii) filling with protective gas to 500-1000 Pa, vacuum heating, melting copper, pouring spherical object into molten copper, stirring, melting spherical object, casting the copper solution in a mold, and cooling to room temperature in a protective atmosphere. USE - Preparation of copper-graphene composite material (claimed). ADVANTAGE - The method enables the preparation of copper-graphene composite material with high conductivity.