▎ 摘　　要

NOVELTY - Preparing graphene-modified composite carbon fiber involves mixing functionalized graphene, carbon fiber precursor and solvent to obtain graphene modified carbon fiber precursor solution. The obtained graphene modified carbon fiber precursor solution is subjected to spinning in spinning dope followed by preoxidation treatment, and carbonization under a protective atmosphere to obtain the desired product. USE - Method for preparing graphene-modified composite carbon fiber used for preparing reinforcing materials, functional clothing, mechanical equipment, electronic equipment or electromagnetic equipment (all claimed). ADVANTAGE - The method enables to prepare graphene-modified composite carbon fiber in a simple manner, which has good controllability and is suitable for large scale production.