The article examines the role of the eco -financial sector in the implementation of sustainable development goals through the creation of a new ecological system of global financial resources -a system of responsible and green financing. Favorable economic conditions and significant socio-economic benefits are at the heart of banks’ transition to responsible and green finance. Provided that these principles are implemented on an ongoing basis, in the near future, one can expect an increase in investments in environmental and social projects, and, as a result, an improvement in the environmental situation and an increase in the standard of living of the population different countries of the world. In this paper, the authors analyzed the main directions of development of a new ecological system of global financial resources - a system of responsible and green financing in Russia and abroad and the role of the eco - financial sector in the implementation of the UN sustainable development goals in terms of combating climate change, industrialization, innovation and infrastructure, affordable and clean energy, clean water and sanitation. The analysis showed that foreign and domestic banks and other financial institutions are actively involved in organizing and conducting the issuance of “green” bonds.