Research into the issues of ensuring sustainable economic growth without damage to the environment is now becoming more and more relevant. The previously implemented «model of resource-intensive economy» does not allow efficient use of natural resources, increases environmental risks, which, in general, leads to a decrease in productivity, generates additional costs and poses a threat to the country’s competitiveness. Within the framework of the paradigm of sustainable development, a new model of a «green» economy is being formed. In Russia, the transition from an extensive export-raw material model of the economy to environmentally sustainable development and the model of a «green» economy is associated with a reversal of «anti-sustainable» trends. This transformation requires significant investment. However, the difficulties of implementing a strategy for responsible or environmental investment are associated with the formation of the institutional framework and the implementation of state and market mechanisms to support eco-investment. The study of foreign practices in the application of state support measures and the implemented market instruments for environmental investment will determine the most successful experience and the possibility of adapting it to Russian conditions. The purpose of this article is to determine the institutional and market framework for the development of eco-investment in Russia, allowing for both investment and environmental benefits in the context of sustainable development based on the study of foreign experience. The author has carried out a systematic analysis of state and market mechanisms for supporting eco-investment, used in the European Union, South Korea and China, which makes it possible to assess the possibilities of their application in the Russian economy. The toolkit for supporting private investors, aimed at minimizing investment risks and stimulating investment support for «green» projects, has been identified. The study of the practice of eco-investment in Russia made it possible to identify the main obstacles to the development of these processes and identify the key tools for the wider application of eco-investment mechanisms in Russia.