Introduction. The State investment policy is the main element of the state socio-economic strategy aimed at achieving sustainable development and increasing the competitiveness of the national economy. The main tasks facing the state in the framework of investment policy include the creation of institutional and legal mechanisms, optimization of investment management, as well as stimulating investments in priority sectors of the economy. The introduction of modern tools for project and financial management, strengthening state control and support for innovative projects are becoming important aspects of this policy. Purpose. The description of the theoretical foundations and key aspects of the state investment policy, the study of its role in stimulating economic growth and ensuring sustainable socio-economic development of the country. Methods. The following methods are used in the work: system analysis, methods of comparative analysis and theoretical modeling. Results. The study shows that the state investment policy serves as the basis for effective regulation of investment activity, creation of a favorable investment climate and stimulation of investments in priority sectors of the economy. The policy includes legal regulation mechanisms, tax incentives, and the creation of an institutional environment that promotes increased investment and economic modernization. Conclusions. The results of the study emphasize the importance of harmonizing public investment policy at the federal, regional and sectoral levels, as well as the formation of effective mechanisms for interaction between the state and the private sector to ensure the sustainability and competitiveness of the national economy.