▎ 摘　　要

NOVELTY - The utility model claims a preparation device of graphene, comprising a shell; the lower end of the shell is fixedly connected with a supporting rod; the outer surface of the supporting rod is provided with a sleeve; the shell is upper end connected with a first feeding pipe; the right side of the first feeding hopper is provided with a metering device; the outer surface of the metering device is fixedly connected with a third feeding pipe; the lower end of the metering device is fixedly connected with a second feeding pipe; the lower end of the second feeding pipe and the first feeding pipe are fixedly connected with a box body; the outer side of the heating plate is provided with a stirring plate; the side wall of the box body is fixedly connected with a first connecting pipe; one end of the first connecting pipe is fixedly connected with a nozzle; the other end of the first connecting pipe is fixedly connected with a second connecting pipe; the lower end of the box body is fixedly connected with a second discharging pipe. In the utility model, the metering device can accurately measure the added substance; the nozzle further puries the graphene through the suction machine, so as to improve the preparation quality of the graphene.