With the implementation of Internet Plus and Made in China 2025 plans, Chinas digital technology has developed rapidly, and the transformation to a digital direction is imminent for Chinas manufacturing industry. In response to the national strategic deployment, many automobile enterprises have begun to carry out digital transformation. This article selects three representative Chinese automobile manufacturing enterprises and studies their business models through case analysis. This paper summarizes automobile enterprises' digital transformation business model from six aspects: product production, user service, marketing methods, and business processes. This paper has promoted the theoretical development of the digital transformation of the manufacturing industry, especially the automobile manufacturing industry. At the same time, it provides practical business model suggestions for the digital transformation of Chinese automobile manufacturing enterprises.