With the development of the plastic industry, the plastic injecting mold has already become one of the mainly ways of making the plastic ware. This paper mainly introduces the method and the process of the injecting mold designing. First, It has introduced the position and function in the developing society of the plastic injecting mold’s making and designing, and analysied the structure of the plastic product ,and also modified some parts of the structure .Next, this paper introduce the concrete process of the plastic mold’s designing. according to the actual designing plastic, carried on the analysis and modifications of the plastic product’s structure craft, the next chapter introduced the concrete design process of the plastic injecting mold.The injecting machine was chosen according to the product’s weight,the face was chosen according to the structure of the plastics and model the type of cent of the craft、taking out the organization of core and the outing organizations、noting system、cooling system and resetting the system to carry on the detailed design towards modeling zero parts and sprinkling at the same time。In addition, return to design of plastics injected other zero parts of mold to carry on the simple design, the insight was elaborating in the end of the paper, and the later designing way of the injecting mold was put forward my views and viewpoints.
