▎ 摘　　要

NOVELTY - Preparing nitrogen-doped graphene/copper wire high current-carrying composite material, comprises placing a copper wire of a certain diameter into a microwave tube furnace, turning on vacuum, introducing hydrogen for annealing, plating the annealed copper wire with nano-metal nickel film by electron beam evaporation, coating surface of copper-nickel wire material with silk fibroin solution, drying by aligning two motors with same power and speed, fixing a thick copper wire between the two motors for connection, soldering the sample copper wire to the two motors with tin wire, applying the silk fibroin solution on the surface of the sample copper wire with a plastic-tip dropper, removing the sample, performing drying treatment based on infrared drying lamp, placing the sample into microwave tube furnace, turning on vacuum, passing into nitrogen to carry out plasma heat treatment, and converting silk fibroin into nitrogen-doped graphene and coating on the surface of copper wire. USE - The method is useful for preparing nitrogen-doped graphene/copper wire high current-carrying composite material. ADVANTAGE - The method enables to prepare nitrogen-doped graphene/copper wire high-current-carrying composite material that solves the problem that the small size silk-type material is difficult to coat uniformly, and the operation safety simple, the cost is low, and ensures the nitrogen doped graphene the silk fibroin can uniformly cover the whole copper wire, so that the current carrying amount of the graphene and copper wire composite material is improved.