This paper addressed understanding: how Chinese policies shifted in the Yangtze River Delta by analyzing the differences and transformations between the 2010 and 2019 Yangtze River Delta regional outlines. By using NVIVO, a qualitative research software, the analysis focuses on the new contents of the 2019 outline regarding ecological and environmental policies. Last but not least, it puts forward the progress and shortcomings of the Yangtze River Delta eco-integration policies by summarizing the latest environmental data.