▎ 摘　　要

NOVELTY - Graphene oxide drug carrier comprises several nanoparticles, where each nanoparticles comprises inner core formed by graphene oxide and shell formed by pyrenyl disulfide group polyethylene glycol, where the pyrenyl disulfide group polyethylene glycol is adhered to the surface of the graphene oxide through pi - pi conjugative effect of pyrenyl and the graphene oxide. USE - The graphene oxide drug carrier is useful for delivering antitumor drug (claimed). ADVANTAGE - The graphene oxide drug carrier has high space stability, and electrostatic stability, and relatively high stability.