▎ 摘　　要

NOVELTY - The utility model claims a graphene heating instrument heat preservation bag, comprising a vacuum heat preservation cover (1); a control plate (2) and a vacuumizing air port (3), wherein the vacuum heat preservation cover (1) is set as a plurality of graphene flexible heating film material made of elastic plane (11) to form a hollow cavity three-dimensional structure, and set on the graphene heating film elastic plane (11) is electrically connected with the control plate (2) ; the control plate (2) further comprises a temperature monitoring device; when the temperature monitoring device of the control plate (2) detects that the temperature of the graphene heating film is lower than the set working temperature threshold value, starting the heating mode of the graphene heating film. realizing the normal work of the electronic instrument under the ultra-low temperature condition.