The purpose of the research is to systematize and clarify scientific and theoretical approaches to determining the essence and economic content of environmentally responsible investment within the framework of the ESG-investment concept and to study the possibility of their implementation in Kazakhstani practice.Methodology – the methods included scientific abstraction, inductive, deductive and comparative analysis. In addition, special methods were applied: comparison, monographic, normative, economic and statistical (statistical sample, economic grouping, calculation of statistical indicators, including absolute and relative values).Originality / value – the obtained research results can be applied in Kazakhstan in improving the state policy in the field of "green" financing in Kazakhstan, responsible investment of measures to counter environmental threats.Findings – the results defined the essence of responsible investment within the framework of the ESGinvestment concept, taking into account the unity of environmental, social and corporate governance factors. The analysis of the state and development of responsible investment in economically developed countries was held. Possibilities of forming an ecosystem of financial support for environmentally responsible investments in Kazakhstan were clarified. The factors constraining and stimulating the inflow of investments into green economy projects are highlighted, as well as measures of state support for the development of environmentally responsible investment in the country were proposed. The results of this research can be applied in Kazakhstan to improve the state policy in the field of “green” financing, responsible investment of measures to counter environmental threats and challenges.