This report combs and comprehensively analyzes the importance of human settlements literature and human settlements evaluation in large and medium-sized cities at home and abroad.Using the indicators of historical observation points，the living environment of 38 cities in China is selected as the research object.Ranking indicators and 8 first-level indicators （urban new standard air quality index，green area per 10，000 people，per capita park green area，per capita park number，green area coverage of built-up area，equivalent sound level of urban area environmental noise monitoring，road traffic Comparative analysis of score rankings of equivalent sound levels and harmless treatment rates of domestic garbage，and analysis of changes in urban human settlements environmental indicators from 2015 to 2017.We also exploring important factors or causes conducive to promoting healthy aging Under the guidance of Xi Jinping's ecological civilization thought，and proposes a strategy to further enhance the development of human settlements in large and medium cities.