With the relevant policies of green finance in China from 2017 to 2019 as the data source, the quantitative analysis of the content information of green finance related policies is conducted by extracting the text line feature words and high-frequency keywords in documents, constructing the word cloud map, co-occurrence matrix, high-frequency word social network, and summarizing the text from the policy formulation focus and policy content. The results show that during 2017-2019 China’s policy of green finance improves the government’s incentive mechanism and regulatory system for green finance enterprises and institutions, and reflects the focus of green finance development in the past three years.