In today's rapidly changing market environment, digital transformation has become an important driving force for business survival and development. With the continuous progress of technology, enterprises are facing the pressure of transformation, but also ushered in the opportunity of business model innovation. Through literature review, case studies and empirical research, this paper will analyze the innovative business models adopted by enterprises in implementing digital transformation, and explore how these models affect various dimensions of enterprise performance. It is found that business model innovation not only improves the operational efficiency of enterprises, but also improves the customer experience, thus significantly improving the market competitiveness of enterprises. Finally, this paper puts forward some suggestions for enterprises to implement business model innovation in the process of digital transformation, in order to provide reference for practice.