▎ 摘　　要

NOVELTY - Preparing graphene fiber comprises extruding graphene oxide spinning liquid from spinning vents into coagulation bath, rotating spinning nozzles around rotating shaft, achieving multi-strand oxide graphene fiber preparation and twisting strands, where rotation shaft comprises center line of geometry, spinning nozzles or parallel line of center line, and reducing twisted strands of polygonal graphene fibers to obtain twisted multi-strand graphene fiber. USE - The method is useful for preparing graphene fiber (claimed). ADVANTAGE - The method has simple process, convenient operation, less preparation time, obtained graphene fiber having uniform structure, good toughness and electrical conductivity, and can woven into various functional fabric. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene fiber is prepared by above mentioned method.