From the perspective of product life cycle assessment, carton packaging (PET bottle) plastic bottle packaging has a higher environmental and ecological advantages, but no matter what kind of packaging and other systems, carton packaging, environmental protection is very prominent. Plastic cover is an important part of plastic bottle packaging, which plays a role in protecting product quality and shaping product personality. In order to better meet the individual needs of the products, the beverage companies have worked hard on the plastic cover. Many suppliers have introduced plastic covers with different functions and forms, so that they can not only adapt to the needs of the products, but also bring them to the end users. With more opportunities to choose, the status of plastic covers has gradually become prominent.