▎ 摘　　要

NOVELTY - Preparation of nanocellulose-graphene composite electric heating film comprises mixing graphene and nano cellulose, laying conductive material, coating composite membrane and forming insulating layer of electrode. The electrode portion is connected to composite film and extends out of insulating layer. USE - Method of preparing nanocellulose-graphene composite electric heating film (claimed). ADVANTAGE - The film has excellent power regulation performance, improves flexibility and strength, enhances stability of electrical properties and heating temperature uniformity and has higher preparation efficiency.