▎ 摘　　要

NOVELTY - Performing clean wet spinning process involves extruding the graphene oxide solution into a glacial acetic acid coagulation bath for coagulation to obtain graphene oxide fibers. The graphene oxide fiber is subjected to carbon dioxide laser reduction to obtain graphene fiber. USE - Method for performing clean wet spinning process for preparing graphene fibers. ADVANTAGE - The method enables to perform clean wet spinning process which does not require the use of chemical reducing agents, avoids environmental pollution caused by the use of hydroiodic acid in traditional processes, and avoids energy consumption caused by thermal reduction, has high crystallinity, which is close to graphite fiber, and the XRD peak of graphite crystal appears, which is beneficial to the preparation of high thermal conductivity fiber, laser reduction time is short, the reduction of graphene oxide is achieved in a some seconds, which is greatly saves energy and cost-effective.