The paper intends to explore the aesthetic construction type and design method of modern product design by analyzing the aesthetic timelines of the design. Based on the analysis of the elements and structure of aesthetic timeliness of modern product design, the paper summarizes three forms of aesthetic timelessness:transient aesthetic, persistent aesthetic and regression aesthetic. Taking this as the starting point, through the classification and analysis of its concept and characteristics, the design methods, strategies and ideas corresponding to the types of aesthetic timelessness of product design are summarized. Through the analysis of the main aesthetic form of modern products and the trend of individualized demand in the consumption era, it is concluded that the design of transient aesthetic products should focus on the dynamic design method driven by the exploration of hot spot demand and facial value drive; A comprehensive design strategy is proposed that persistent aesthetic product design should clarify the connotation of aesthetic rationality of product design, strengthen the narrative construction of product concept, and clarify the position of design aesthetic culture; It is concluded that the regression type aesthetic product design to symbolic, emotional, cultural as the core design aesthetic coding path.