According to the 2019 data verification and analysis of China provincial Sustainable Development Index system，the four municipalities and the eastern coastal provinces ranked high in sustainable development. It shows that Beijing，Shanghai，Zhejiang，Jiangsu，Guangdong，Anhui，Hubei，Chongqing，Shandong and Henan rounded out the top 10. In central China，Anhui province topped the list，rising from 10th in 2018 to sixth in 2019. In the western region，except For Chongqing which ranked among the top 10 （8th），other provinces were all outside the top ten in the overall sustainable development. In terms of five classification indexes，namely economic development，people’s livelihood，resources and environment，consumption and emission，and environmental governance，there is obvious imbalance in the sustainable development among the provincial regions. Using the absolute difference between the maximum and minimum values of each region’s tier-1 index ranking to measure the imbalance degree，we find that the provincial-level regions with high imbalance （differential value ＞20） are：Beijing，Anhui，Henan，Guizhou，Tianjin，Hebei，Yunnan，Hainan，Ningxia，Qinghai and Heilongjiang；the provincial-level regions with moderate imbalance （10＜ difference value ≤20） are：Shanghai，Jiangsu，Guangdong，Hubei，Chongqing，Shandong，Fujian，Hunan，Guangxi，Inner Mongolia，Shaanxi，Liaoning，Gansu，Xinjiang and Jilin；the provincial-level regions with balance （difference value ≤10） are Zhejiang，Jiangxi，Sichuan and Shanxi. There is plenty of room for most provincial regions to promote their sustainable development.