The business model innovation of advertising companies in the digital era is a dynamic process. In order to better understand the innovation process, this article uses a longitudinal research perspective based on the time axis to analyze the specific fresh cases and present the specific process of business model innovation in the digital era. Factors related to the business model innovation process. The purpose is to show in depth the selective interaction process between the "technology-value" paradigm of the digital society and the corporate subject through case studies, while looking for the factors that promote business model innovation under the "technology-value" paradigm. Analysis, comparison and comparison of cases and theories to verify, supplement and modify theories. <<