▎ 摘　　要

NOVELTY - Graphene preparation device comprises a reaction shell with a sealed containing cavity. A heating component is arranged in a containing cavity, and a reaction area is formed in the containing cavity. A reaction gas input pipe is connected to the reaction shell and extends into the reaction area. A protective gas input pipe communicates with the reaction shell and extends into the containing cavity. A graphene output tube connected to the reaction shell, and the nozzle is facing the reaction area. A gas discharge pipe communicates with the reaction shell and extends into the containing cavity. The electric field electrode module includes: a first electric field electrode and a second electric field electrode. USE - Used as graphene preparation device. ADVANTAGE - The device solves the problem of complicated structure of the existing graphene preparation device. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for use of graphene preparation device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a front cross-sectional structure of the graphene preparation device.