It is a very important procedure of product design to transform rationally fuzzy and qualitative evaluation into quantitative evaluation for optimum solution. This paper introduces a computer-aided selection system for optimum solution to produce design. The system is established on the platform of Microsoft Visual Basic 5.0 with the method of fuzzy comprehensive judgments and comparison. It has the functions of quantitative evaluation, selection of the optimum design solution, filling, consulting and printing of the optimized results.