there is too little Plastic Pipe Fitting Mould too many factories and too scattered, and product quality cannot keep up; for the fastener mold market, disorderly competition is the chaotic market. From China\u2019s "Tenth Five-Year Plan" mold industry development plan, it is proposed that fastener molds should expand their varieties, improve precision, and achieve interchangeability. Up to the present "Twelfth Five-Year Plan", the development of my country's fastener molds still cannot keep up with the level of developed countries. Many fastener molds have been used abroad for many years,but Chinese fastener companies have not yet produced them. At present, medium and high-grade fasteners are basically imported from abroad, and the products produced and used by ourselves are products with low performance and poor stability, which are used in molds with less demanding requirements.its machining accuracy is high, and relatively speaking, the programming difficulty is relatively low, and the amount of CNC EDM is higher than that of fine and complex shapes, special material molds, and plastic inserts. Machining of cavities and inserts, molds with special-shaped grooves. Wire cutting is mainly used in the processing of various straight wall molds, such as concave and convex molds in stamping molds, inserts and sliders in injection molds, and electrodes for EDM. 3 Conclusion Nowadays, CNC machining technology has been widely used in various production fields of mold manufacturing, especially in household appliances, light industry, automobiles, medical equipment, handicrafts, children's toys and other industries. Advanced CNC machining technology has begun to manufacture molds for wind power, hydropower, nuclear power, railway transportation, aerospace and other fields. In short, the mold has the characteristics of complex structure, complex profile, high precision requirements, high hardness of materials used, and short manufacturing cycle. The application of CNC machining molds can greatly improve the processing accuracy, reduce manual operations, improve processing efficiency, and shorten the mold manufacturing cycle. At the same time, the numerical control processing of molds has a certain degree of typicality, which has higher requirements than the numerical control processing of ordinary products.