Under the background of the general trend of enterprise digital transformation, taking private listed companies from 2007 to 2020 as the research sample, this paper empirically investigates the impact of founders and final controllers of strategic investors on enterprise digital transformation. The research results show that the founding controller is conducive to the listed companies to actively promote the digital process of enterprises; Financial and industrial investment controllers will inhibit the digital transformation of enterprises, and the inhibitory effect of financial investment controllers is stronger. Digital finance and control power further strengthen the above regression results. Individual controller, vertical industry controller and professional financial investment controller contribute to the digital transformation of enterprises. Mechanism research shows that the company"s innovation input and output and information transparency play an intermediary role between the heterogeneity of controllers and the digital transformation of enterprises. The research of this paper enriches the research perspective and content of the relationship between corporate controller and digital transformation, and has a certain reference significance for enterprises to improve corporate governance and actively promote enterprise digital transformation.