▎ 摘　　要

NOVELTY - A graphene oxide-loaded poly- beta -cyclodextrin lithium-sulfur battery membrane material preparing method involves loading poly- beta -cyclodextrin onto a graphene oxide solution to obtain a loaded poly- beta -cyclodextrin graphene oxide solution, pumping solution through a suction filtration device to draw the graphene oxide solution onto a lithium-sulfur battery separator Celgard 2400, vacuum drying to obtain product. USE - Method for preparing graphene oxide-loaded poly- beta -cyclodextrin lithium-sulfur battery membrane material. ADVANTAGE - The material has unique properties and can effectively prevent polysulfide from flowing to the negative electrode of the lithium-sulfur battery, and improves the coulombic efficiency and cycle stability of the battery.