The colored flower pattern of the Song Dynasty is an important representative of traditional Chinese patterns and an important source of modern pattern design innovation, but there are still obvious problems in the innovation of colored flower pattern of the Song Dynasty in the context of modern design. The development of AIGC technology provides a new possibility for traditional pattern design innovation. The work aims to construct a complete traditional pattern innovation design workflow based on the current AIGC tools. The concrete steps of implementing the technology is constructed by building the high-efficient generation framework based on Stable Diffusion. From the digital processing of the original pattern to the application of style transfer, and then to the generation of the final physical product, each link follows the established workflow to ensure that the final product not only retains the classic beauty of the traditional pattern, but also meets the aesthetic needs of modern consumers, showing the new possibilities of the application of the aesthetic form of the colored flower pattern of the Song Dynasty in modern pattern design. It not only provides a feasible technical scheme and design idea for the modernization transformation of the colored flower pattern of the Song Dynasty, but also provides strategic guidance and technical support for the innovative design of other traditional patterns.