Digital transformation has brought significant changes to individuals，organizations，and all levels and fields of society，and has profoundly influenced the processes and effectiveness of national governance. However，there is limited research that systematically analyzes the changes in national governance caused by digital transformation from a macro perspective. There are at least three dimensions that distinguish national governance from the past：First，in terms of the governance effectiveness of internal affairs，digital transformation provides conditions for leapfrog economic growth and innovative development paths for countries. Second，in terms of governance methods among countries，there is a convergence of governance approaches due to the common new problems and logics of digital development. Third，in the widely connected digital era，the inadequacy of the effectiveness of the nation-state as a governance unit is highlighted by multiple global challenges，and national governance needs to consider the global digital order. The widespread diffusion of digital technology，its strong adaptive nature，and the connection and generation logic of digital transformation are the intrinsic mechanisms of change in national governance.