This report evaluates in detail the sustainable development of 100 large and medium-sized cities in China this year. According to the data verification analysis of index system，the top ten cities include Hangzhou，Zhuhai，Guangzhou，Beijing，Wuxi，Shenzhen，Suzhou，Wuhan，Nanjing and Zhengzhou. Hangzhou ranks first in the comprehensive sustainable development of cities in China for the first time，while Zhuhai，Guangzhou，Beijing and the eastern coastal cities rank first. Based on the index system of economic development，people’s livelihood，resources and environment，consumption and emission and environmental governance，the level of urban sustainable development is obviously unbalanced.