▎ 摘　　要

NOVELTY - A regular graphene single-crystal domain preparing method involves forming aromatic compound as regular graphene single-crystal domain on a metal surface by molecule self-assembly technology and heat treatment process. USE - Method for preparing regular graphene single-crystal domain utilized for a graphene apparatus. ADVANTAGE - The method enables satisfying shape and single-crystal requirement of a graphene apparatus. DESCRIPTION OF DRAWING(S) - The drawing shows a photograph of a regular graphene single-crystal domain.