▎ 摘　　要

NOVELTY - A graphene film preparing device has a tank filled with a tin bath, a partition wall provided in the tank for separating cavity of the tank into a spraying chamber and a film-forming chamber, an upper communication port provided above one side of the partition wall, a lower communication port provided on lower side of the partition wall, a liquid supply device arranged on upper side of the tank, a heating device, a linear motor and a cooling device. USE - Device for preparing graphene film (claimed). ADVANTAGE - The device has is capable of aggregating graphene sheets and easy to operate, and has simple structure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene film.