Annotation: The key approaches to understanding the content of the mechanism of state regulation are determined. The main approaches to the typology of the state regulation of sustainable development mechanism are presented. It was stated that the complex mechanism of state regulation of sustainable development may consist of normative-legal, institutional, organizational-managerial, financial-economic and informational submechanisms. The mechanism of state regulation of sustainable development and the complex mechanism of state regulation of sustainable development on the basis of socio-ecological-economic systems are presented.