The recycling and utilization of PET plastic bottles can not only solve environmental problems, but also serve as a new raw material resource to alleviate the contradiction of insufficient PET raw materials in China. Yes, looking back at China's 30 years of reform and opening up, although China has achieved remarkable achievements in the economic field, it has also brought serious damage to China's environment. Water pollution, air pollution, solid waste pollution, and so on. Bringing shrinkage to China's economy. People have gradually recognized this issue and proposed a series of measures such as taking the path of sustainable development, green GDP strategy, circular economy strategy, etc. It can be seen that the recycling and utilization of PET plastic bottles is in line with the practical problems faced by China, and is of great benefit to environmental protection, resource conservation, and sustainable development.