The Paper is devoted to the study of the concept of constitutional and legal forms of political activity of citizens, which are carried out by information and communication technologies and their classification.It is considered the concept of political and legal activity of citizens on the Internet, which is interdisci- plinary and includes such practices as online consultations, e-elections, e-participation, online polls, e-pe- titions, online chats, group decision-making online, etc. It is noted that the above list applies only to those social activity of citizens that has a political and legal nature and are implemented through ICT, and this list tends to expand. The Paper highlights the criteria for the classification of constitutional and legal forms of political activity of citizens, which are carried out by information and communication technologies. The di- vision takes into account the form of democracy, the degree of mandatory use of certain ICT tools, the degree of mandatory decision-making based on the use of ICT tools, functional purpose or scope of review of the issue, which becomes the subject of citizen participation.It is emphasized that the political activity of citizens, implemented through ICT, is an element of e-democ- racy, but its implementation takes place within the framework of representative and participatory democracy, due to the features of use of computer-mediated communication.