Hot melt adhesive film is a film-type hot melt adhesive product made by melt casting and calendering processes. It is a solid film at room temperature, featuring solvent-free, eco-friendly and odorless properties. It can be rapidly melted and laminated by heat pressing and solidifies quickly after cooling. With high bonding strength, it also has good resistance to temperature, washing and aging, meeting the laminating and bonding needs of a variety of materials.