A parameterized system for encapsulation machine was developed based on SolidWorks, in order to shorten the design cycle, save the design cost, and to be convenient for users. ATL COM Wizard mode of Visual C ++ 6.0 was employed to customize a parameterized system of encapsulation machine for producing flies incense on SolidWorks. By inputting the diameter of flies incense on human-computer interaction interface, we can get part model, assembly model and engineering drawing quickly. The parameterized system can shorten the design cycle, save the design cost, and guide the production practice.