▎ 摘　　要

NOVELTY - The utility model claims a sagger for preparing graphene material, top of the sagger comprises sagger main body and lid, the sagger main body is opened, the box cover at the top part of the sagger body, wherein the sagger main body comprises wall body and outer cavity between the outer box body to form the outer box wall, the outer box wall is provided with a gap, the outer cavity is connected with the outside; the sagger main body is further provided with a , the comprising an inner casing wall body and wall body forms the inner cavity in the box, the inner cavity and the outer cavity.