▎ 摘　　要

NOVELTY - Preparing high-conductivity graphene/copper composite wire, comprises electrochemically polishing copper wire, performing coil chemical vapor deposition and doping in a tubular furnace, which is respectively connected with carbon source, reducing gas source and doping source. The doping source includes graphene material with p-type doping effect or graphene material with n-type doping effect. USE - The method is useful for preparing high-conductivity graphene/copper composite wire. ADVANTAGE - The method: ensures high quality synthesis of graphene itself; improves thickness of deposition and doped layer under condition of high conductivity of graphene; ensures excellent thickness and conductivity of deposition and doped graphene; and produces excellent graphene/copper composite wire by combining graphene and substrate material interface. The composite wire has conductivity of 7.8x 107 S/m.