▎ 摘　　要

NOVELTY - Preparing graphene high-temperature electric heating film based on LIG process, comprises (1) forming a composite layer of PI-copper electrode, fully or partially embedding the copper electrode in the PI film; (2) forming PI material layer on the surface of the PI film-copper electrode composite layer to form PI-copper electrode-PI material layer (to be LIG layer) combination; (3) subjecting PI material layer to LIG treatment, transmitting and guiding the laser light to form graphene heating layer pattern, forming a PI film-copper electrode composite layer-patterned graphene layer (LIG layer) structure; and (4) packaging the protective film layer on the surface of the patterned graphene layer. USE - The method is useful for preparing graphene high-temperature electric heating film based on LIG process.