Abstract: Studying the evaluation and decision of module partition results, finding an optimal partition scheme, are the important contents of product modularization design. By combining with the practice of module partition of high-speed turning center, we established a hierarchy structure model, constructed the judgment matrix, computed the relative weight and synthetic weight by using the AHP, and developed a module partition evaluation system by using the VB. Through the example design and result analysis, the application of the evaluation system can be confirmed to be more rapidly and accurately than other conventional ones in the process of calculating optimum solution.