This article describes the information-psychological security system as a subsystem of national security, and provides a terminological and retrospective analysis of sociological approaches to this concept. In addition, approaches to the concept of information and psychological security are reflected in scientific views as the vital interests of the individual, society and the state, as information, as the human psyche, as ideology and ideas. The term "information and psychological security" is interpreted as the need to ensure the vital interests of the individual, society and social groups. The article pays special attention to methods of information and psychological impact on social processes and their negative and positive characteristics. Moreover, the theoretical and methodological bases of information and psychological security, interdisciplinary approaches to this concept are analyzed and sociological approaches to the information-psychological security system are also selected as a subject comparative analysis.