The work aims to discuss the application strategies of shared mental models in social collaborative innovation design. Based on the relevant theories and influencing factors of shared mental models, combined with the four stages of shared mental formation:formation, adjustment, integration and stabilization, a shared mental model in social collaborative innovation was constructed and applied in the practical case of Tibetan and Qiang weaving and embroidery social collaborative innovation. The participating individuals in the team established a common vision under the guidance of the task goal. Through knowledge exchange and mutual inspiration among peers, the individual mind was revised and strengthened to form a shared mind and knowledge platform, and finally the social innovation design goal was completed. By building a shared mental model, it is helpful for participating individuals in different knowledge fields to collaborate, and brings new ideas for knowledge interaction and product innovation.