At present, it is an important period of transformation of China’s social and economic structure, and the state vigorously supports the development of the tertiary industry, to achieve the purpose of optimizing the economic structure. Although the animation industry is a new industry with a short history of development in China, with the rapid development of digital media technology in recent years, digital media technology in 2D, 3D animation film, and television drama is increasingly accepted by the audience. This paper uses the current situation of 3D animation group modeling design and genetic algorithm, multi-objective evolutionary algorithm, digital media technology, and animation design briefly explained. Digital media technology has an important role in animation design, which greatly improves the quality of animation works and promotes the development of China’s animation industry.