In this article the authors raise the question of the impact of digital platforms on the change of public values and on the system of public administration. Digital platforms O2O (online-to-offline) are considered as new economic agents, transforming into institutional mechanisms and forming a new system of values. Using the public values typology to assess the impact of ICTs on e-government (Bannister & Connolly, 2014). The authors evaluated the impact of the digital platforms on public values and studied different types of transaction costs depending on the type of transaction, using the results of foreign studies and interviews with participants of platforms on O2O platforms (YouDo, Youla, Profi.ru, Avito, Fl.ru). Based on the Public Value Theory and the Principal-agent Theory considering the presence of risks of interaction between the participants of digital platforms O2O and the lack of sufficient regulation, the authors formulated the main directions of key changes in the system of public administration in connection with platformization and justified the need to move to a new system of public administration based on public values – Public Value Management.