▎ 摘　　要

NOVELTY - Preparing one-dimensional macroscopic graphene fiber, comprises providing an oxidization graphene dispersion liquid, adding the graphene oxide dispersion liquid into a hexadecyl trimethyl ammonium bromide water solution to obtain graphene oxide fiber, and reducing and drying the obtained graphene oxide fiber. USE - The method is useful for preparing one-dimensional macroscopic graphene fiber (claimed). ADVANTAGE - The method provides one-dimensional macroscopic graphene fiber with high mechanical strength and good conductivity in a simple manner.