Mixing equipment is widely used in food engineering, chemical engineering, biological engineering and other industries. They have an important impact on the process effect and product quality. Along with the gradually perfect and mature production technology, the technological parameters of mixing equipment, structure and stability, especially in the process operating conditions under the condition of same capacity only different, this kind of device is often just the difference of shape size, volume, power, size, number of assembly structure of the equipment, spare parts and types are basically the same. This provides necessary conditions for the standardization, standardization and modular design of mixing equipment. This paper briefly introduces the development of 3d parametric CAD system for mixing equipment.