The work aims to delve into the intrinsic nature and principles of aesthetic preferences in product design, explore the methods and approaches for evaluating the aesthetic aspects of product design and establish an aesthetic evaluation model of CMF design for products. First, based on the research literature of product aesthetics, the aesthetic evaluation dimensions of product CMF design were outlined. Second, consumer aesthetic preference elements were investigated through questionnaire surveys and interviews to explore aesthetic evaluation indicators and conduct a weight analysis. Finally, an evaluation model was constructed based on fuzzy evaluation method, and the evaluation model interface was improved. Three aesthetic evaluation dimensions (perception, cognition, and social interaction), six elements (diversity, unity, typicality, novelty, uniqueness, connectivity) and 25 evaluation indicators of product CMF design were proposed. Based on the weight analysis of the evaluation indicators, the "Aesthetics-PCS" evaluation model for product CMF design was constructed. This evaluation model can assist in the product design selection process, enabling designers to better understand the aesthetic preferences of consumers and make corresponding designs, and enhance the market competitiveness of products.