▎ 摘　　要

NOVELTY - The method involves obtaining carbon radical deposition on a graphitized surface of a graphite ball through high-temperature porous metal catalytic pyrolysis of carbon hydrogen gas i.e. methane, to realize growth of graphene on the graphite ball surface. Porous metal is included with copper and nickel materials. The graphite ball surface is etched to form an amorphous structure. USE - Graphene-graphite ball composite material preparation method. ADVANTAGE - The method enables preparing a graphene-graphite ball composite material with high conductivity by utilizing three-dimensional chemical vapor deposition process and avoiding liquid phase processing pollution and oxidation.