▎ 摘　　要

NOVELTY - Preparing graphene-based nanocarbon sphere comprises (1) preparing a graphene oxide dispersion, (2) adding hydrogen peroxide and reducing agent to the graphene oxide dispersion obtained in the step (1), reacting with stirring, carrying out solid-liquid separation and reaction to obtain carbon sphere dispersion, (3) using carbon sphere dispersion obtained in the step (2), purifying and separating, vacuum-drying to obtain a graphene-based nanocarbon sphere. USE - The method is useful for preparing graphene-based nanocarbon sphere.