Grounding protection film and preparation method and application thereof

The invention relates to the technical field of grounding protection films, in particular to a grounding protection film and a preparation method and application thereof. The invention discloses a grounding protection film, the grounding protection film comprises a conductive hot melt adhesive, an aluminum foil and a PET film which are attached together from bottom to top, the conductive hot melt adhesive comprises the following raw materials by weight: 2-5 parts of large conductive particles, 0.5-1 part of carbon powder, 50-70 parts of polypropylene, 5-10 parts of styrene, 15-25 parts of maleic anhydride, 0.5-2 parts of dicumyl peroxide, and 5-10 parts of nylon 66; the large conductive particles are carbon particles; according to the grounding protection film, grounding protection can be achieved only by using one film material, and when the grounding protection film is used, a copper strip is pasted on the insulating surface of a heating element firstly, and then the grounding protection film is attached in