Stretch film packaging machine is a packaging equipment that does not require the company to customize packaging bags in advance. The stretch film is heated by the equipment, and the shape of the container is formed by the working principle of upper blowing and lower suction through the forming mold. Workers perform the process in the material filing area. It is a packaging machine that lays out the material, vacuum seals the film in the upper film area, and cuts it into a single product by cross-cutting and longitudinal cutting; because the stretch film packaging machine does not need to customize the bag in advance, but is covered by the bottom film and the upper film. Some users become laminating machine or four-side sealing packaging machine; the working principle of stretch film packaging machine is simple, no custom packaging bag is required, and there is no requirement for product packaging size.