▎ 摘　　要

NOVELTY - The utility model belongs to the technical field of preparing nano material device, specifically claims a high temperature reaction device for preparing graphene by electrifying carbon powder. The purpose of the utility model is to solve the technical problem of small production scale and low efficiency of the existing device for producing graphene. The technical solution of the utility model is as follows: A high temperature reaction device for preparing graphene by electrifying carbon powder, comprising a big and a small two concentric cylinder electrodes, an insulating ring cover and an insulating bottom plate, the bottom end of the two concentric cylinder electrodes is set on the insulating bottom plate, the insulating ring cover is sleeved between the small cylinder electrode and the big cylinder electrode. The utility model has the advantages of large production scale and high efficiency.