The essential characteristic of the category of financial security of the national economy has been clarified. The essential characteristic of «Financial security of the state» in the field of economic security is generalized and its components are investigated. The approaches to the definition of financial security of the national economy are highlighted. The ordering of the parameters of financial security, reflecting the state of the national economy, was carried out, which made it possible to identify the main components of the problem under study and to form a conclusion about the need to include in it the socio-economic and social-financial aspects of the development of the national economic system. The components of financial security have been investigated: fiscal security, debt security, investment security, security of the credit and banking system, security of the monetary system, security of the insurance and stock segments of the financial market. It is shown how with the help of a system of indicators developed taking into account the peculiarities of the development of the financial and real sectors of the economy of the Russian Federation, it is possible to assess the financial security of the national economy. The main systemic risks that pose a threat to the financial security of the system and subsystems of the national economy are identified, and measures are proposed to increase the level of its security. The value of financial monitoring at various levels of the socio-economic system is revealed