With the continuous development of all walks of life, people have higher and higher requirements for materials. Because of its excellent performance, PVC pipe fittings are welcomed by major enterprises. The essence of PVC pipe is vacuum plastic film, which is used for surface packaging of various panels. Therefore, it is also known as decorative film and adhesive film. It is used in many industries, such as building materials, packaging, medicine and so on. In the use process, the most important part is actually the PVC pipe coupling. There are many kinds of PVC pipe coupling, including PVC pipe threaded joints. This kind of pipe joint has only special connection mode, which also brings us great convenience. Next, we briefly introduce the threaded joints of PVC pipe and the related connecting methods.