The article examines the principles of increasing importance of public law instruments for regulating economic relations in modern conditions. Their purpose is justified-to increase the efficiency of the economy as the basis of the national strength of the state, its military might. The methodological basis of the research is the laws of dialectics, general scientific and private methods of cognition, such as systematic, abstract, concrete-historical, statistical, formal-logical, predictive and other methods. The empirical basis of the study was the Constitution of the Russian Federation, federal and regional legislation, regulatory legal acts of executive and legislative authorities, municipal bodies, international regulatory documents (treaties, agreements) on the legal regulation of economic relations. The theoretical basis consists of special legal literature, scientific works on economic theory, sociological research on the regulation of economic relations. The significance of the research results lies in the fact that the generalizations and conclusions contained in it, practical recommendations and suggestions contribute to improving the use of public legal instruments for regulating economic relations in the interests of solving a wide range of public and state tasks.