The paper introduces CAD system of steel tube cold drawing process which is a software with optimum function developed by Iron & steel General Institute on basis of computer imitation technology.

This system is characterized by interface well, function all-around, operation simple and easy extend etc., suited for blasting parameters optimum and blasting effect control for bench blasting.

On principle and method of an expert system, an engineering standard that fits both the multi objective function and the multi objective optimum solution space was established.