This paper studies the computer-aided realization of innovative clothing design under the background of big data from the perspective of image quality evaluation. Now it explains the application of computer technology in the production of renderings, analyzes the current situation of computer-aided design in clothing design, and proposes some application strategies. To promote the innovative development of the apparel design industry. Combining the background of big data, this article proposes an innovative clothing design strategy based on image quality evaluation. Starting from the various elements of clothing design, from the perspective of data mining, discover fashion elements to achieve the purpose of clothing design innovation, so as to meet the ever-changing social needs.