▎ 摘　　要

NOVELTY - Preparing graphene thin layer on the surface of metal catalyst involves reacting carbon source and the metal catalyst substrate at 700-1050 degrees C in presence of hydrogen and argon so as to perform carburization reaction. The surface of the metal catalyst body is processed by hydrogen etching at 800-1200 degrees C to remove the disordered carbon layer from the surface of the metal catalyst in presence of inert gas or vacuum. The metal catalyst is quickly cooled to room temperature. USE - Preparing graphene thin layer on the surface of metal catalyst (claimed). ADVANTAGE - The method enables preparing graphene thin layer on the surface of metal catalyst in a simple and easy manner.