 This study analyzes the impact of the South to North Water Diversion Project, SNWDP, on the spatiotemporal evolution of land subsidence in Beijing using in-SAR techniques and levelling measurements. The results show that while the maximum annual displacement rate reached minus 159.7 mm, year by 2017, over 57% of the area within 25 mm per year contour line showed decreasing, or unchanged displacement rate after the South-North Water delivered to Beijing. The settlement rate in Kaoyang-dong-de-Lizhuang, Cd, subsidence center has decreased for 26 mm per year, from 2011 to 2014 to 2015 to 2017. Only around 15% of the area experienced continued accelerating settlement rate through the three-time periods, which was mainly located in the area with the compressible layer thickness over 190 mm. The study also shows that land subsidence unevenness, represented by LSUI, developed more slowly after SNWDP than that's during 2011 to 2014. However, LSUI at the edge of settlement funnel has kept developing and reached 1.7 per thousand in 2017. Decreasing groundwater level decline after SNWDP and the positive relationship, are two greater than 0.74, between land subsidence and groundwater level clearly showed impacts of SNWDP on the alleviating land subsidence. Other reasons include geological background, increasing precipitation, and strict water management policies implemented during these years. This article was authored by Mingyuan Liu, Ying Haiku, Lin Guo, and others. We are article.tv, links in the description below.