▎ 摘　　要

NOVELTY - Method for preparing a graphene nanoribbon array, involves introducing a carbon source gas on the surface of the liquid metal/wetting substrate to perform chemical vapor deposition in a hydrogen and argon atmosphere, and obtaining the graphene nanoribbon array on the surface of the liquid metal/wetting substrate after the deposition is completed. USE - The method is used for preparing a graphene nanoribbon array (claimed). ADVANTAGE - The method greatly reduces the cumbersomeness and cost of the preparation process, and improves the controllability of the edge structure and width of the prepared graphene nanoribbon array.