The social value system that advertising companies are facing today is in the process of alternating from traditional to digital, and the complexity of its environment far exceeds our theoretical analysis framework. The purpose of this article is to explore the characteristics of the innovative evolution of the advertising company's business model in the digital environment from specific practices. By combining multiple case analysis, this article summarizes the basic paradigm of business model innovation in the digital era from the advertising company's business model innovation practice, and determines the innovation dimension and content by comparing the traditional advertising company business model. At the same time, this article adopts a comparative research method to compare the traditional advertising company's business model with the digital age business model to answer whether the digital age advertising company has created business model innovation and innovation content. <<