▎ 摘　　要

NOVELTY - The method involves injecting catalytic substrate into carbon ion. The catalytic substrate into carbon ion is annealed to the carbon ion implantation, so as to form a graphene thin film layer on the catalyst substrate surface. One layer of graphene thin film layer structure of the catalytic substrate is removed to obtain the layer of graphene thin film layer. USE - Method for controlling stability of ion based on energy of ion implantation for preparing graphene. ADVANTAGE - The quality of the graphene layer is improved. The graphene is easy to transfer. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the graphene thin film layer. Graphene thin film layers (23,24)