The work aims to construct a design method of cultural and creative toys, and apply the method to the design practice of Sichuan opera toys based on the concept of "renpin design" combining culture and design aesthetic.Firstly, the connotation of "renpin design" was elaborated and the relationship between "renpin design" and toy design was clarified. Secondly, the case study of the cultural creation and toy design of Sichuan opera was carried out, and the existing problems were found:single design method, serious homogenization, lack of coordination between cultural elements and products. Finally, a three-dimensional design framework of "user U-culture C-product P" was constructed based on the cultural hierarchy theory, and the design methods of "five sense experience" and "two forces and four elements" were embedded. The design derivation model was integrated and constructed, and the design derivation and practice were carried out with Sichuan opera toys to complete the design evaluation and achievement display. Through the "U-C-P" design method model, design deduction is carried out layer by layer from the three dimensions of user, culture and product, so as to improve the user experience, cultural depth, and collaboration and integration of the two with the product in cultural and creative design.