▎ 摘　　要

NOVELTY - Preparation of three-dimensional graphene microspheres involves adding graphene oxide and support medium raw material to solvent, preparing slurry, spray-drying, obtaining graphene oxide/support medium composite, reducing graphene oxide, obtaining graphene/support medium composite, dissolving support medium, and obtaining three-dimensional graphene microspheres having controllable pore size. USE - Preparation of three-dimensional graphene microspheres (claimed). ADVANTAGE - The method enables simple, economical and easy preparation of three-dimensional graphene microspheres having controllable pore size within short period of time.