To further explore the water resources spatial equilibrium and it’s distribution dynamic evolution characteristics in the Beijing-Tianjin-Hebei Region, the Beijing-Tianjin-Hebei Region was divided into four sub-regions:the central core functional area, the eastern coastal development area, the southern functional expansion area, and the northwestern ecological conservation area. Based on the “Basing Four Aspects on Water Resources” policy, starting from the four matching relationships between water resources and construction land, arable land, population, and added value of the secondary industry, the Dagum Gini coefficient and Kernel density estimation methods were used to explore the water resources spatial equilibrium and it’s distribution dynamic evolution process in the Beijing-Tianjin-Hebei Region. The results show that from 2007 to 2022, water resources in the Beijing-Tianjin-Hebei Region were basically in a critical equilibrium state, with the main differences coming from sub-regions, and the average annual contribution rate reached 67.4%. The water resource matching relationship in the Beijing-Tianjin-Hebei Region has been optimized, but regional disparities still exist and continue to widen. Keywords: water resources spatial equilibrium; Dagum Gini coefficient; Kernel density estimation; “Basing Four Aspects on Water Resources”; the Beijing-Tianjin-Hebei Region 〖FL