▎ 摘　　要

NOVELTY - Preparing graphene-reinforced ceramic fiber involves mixing 1-8% graphene oxide, 70-90% water, 2-10% coupling agent, and 10-35% water-soluble resin into solution, soaking eramic fiber in solution for 5-30 minute, adding 2-10% ammonia, 10-30% hydrazine hydrate solution after completion of soaking, putting soaked ceramic fiber in the drying oven at 120-280 degrees C for 20-90 minute. USE - Method for preparing graphene-reinforced ceramic fiber. ADVANTAGE - The method enables to prepare graphene-reinforced ceramic fiber in simple manner, has high strength and toughness,improve toughness of ceramic fibers, utilizes high conductivity of graphene, is electrically conductive and used as materials for high-performance energy storage devices and excellent performance.