The green finance practice originates from the Superfund Act of the USA in the 1980s. The Act requires companies to be responsible for the environment pollution caused by them so that banks attach great importance to and guard against credit risks caused by potential environmental pollution. With the popularization of ecological responsibility and low-carbon environmental awareness，more and more countries，represented by the UK and the USA，solve the issue of market failures in the field of environmental resources with the aid of green finance. Currently，China combines “from top to bottom：top-level design to effective advancement” and “from bottom to top：from pilot operation to standard advancement” in its green finance development，making it a leader in the world in terms of practice guidance and policy commitment. It is found through research on domestic and international green finance practices，that China’s green financial system remains to be improved. It is required that green efforts should be made in terms of laws and regulations，environmental information disclosure，professional green institution development，market-oriented green business operation and risk management in the financial market so as to promote the further development of China towards green finance.