▎ 摘　　要

NOVELTY - Preparing graphene film by alkali assisted method comprises dispersing certain concentration of graphene oxide in a dispersion liquid, filtering under vacuum conditions, pumping into a film, transferring into alkali solution, where the graphene oxide film and filter paper are automatically separated, then rotating graphene oxide film on a desired substrate. USE - The method is useful for preparing graphene film by alkali assisted method (claimed). ADVANTAGE - The method is quick (claimed), simple, economical and maintains transfer membrane integrity.