▎ 摘　　要

NOVELTY - A graphene composite material is prepared by treating graphite rod with 0.1-0.2 mol/L soluble tungstate solution for 24 hours, subjecting into constant voltage of 5-10 V for 1-10 hours, and separating. USE - Method for preparing graphene composite material used for electric heating film (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for application of graphene composite material by dispersing material in water, centrifuging and retaining upper layer liquid, freeze drying, dispersing in water, vacuum filtering, reducing under inert gas at 200-1000 degrees C for 1-24 hours, and electrolyzing to obtain electric heating film.