▎ 摘　　要

NOVELTY - The method involves preparing graphene oxide by adding suspension liquid into water. Carbon nano-particle is added into aqueous solution of surface active agent to obtain carbon particles suspension. Graphene oxide suspension is mixed with the suspension liquid to obtain graphite oxide/carbon nano-particles. The suspension liquid is dried to obtain powder. Reduction treatment is performed at temperature reducing atmosphere. Pre-heating treatment is performed. The powder is cooled at room temperature. The powder is dried to obtain graphene/carbon nano-particle composite material. USE - Graphene/carbon nano-particle composite material preparation method. ADVANTAGE - The method enables effectively preparing graphene/carbon nano-particle composite material and realizing ultra-capacitor material, catalyst carrier and optical material obtaining process. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic view illustrating a graphene/carbon nano-particle composite material preparation method.