Although the method of long-term extensive growth of my country has led to rapid economic growth, it has in the long run caused serious pollution of the environment and also consumes a huge amount of energy. Faced with increasingly serious challenges of resource consumption and environmental pollution, the development of green finance is an inevitable choice for improving the environmental environment, promoting the transformation of the economic structure and achieving sustainable economic development. Thus, to examine the impact of green finance in the Dongguan Water City Economic Zone on economic growth,