Abstract: As the largest strategic freshwater resource bank and an important ecological barrier in the upper reaches of the Yangtze River, the Three Gorges Reservoir faces dire challenges in terms of uncoordinated water resources utilization and supple and demand imbalance of water resources. Water resources carrying capacity is an important index of measuring the sustainable development in a region. Studying the features of dynamic water resources carrying capacity in the Three Gorges Ecological and Economy Corridor of the Yangtze River can go a long way towards promoting water conservation and ecological civilization construction across the reservoir area. Adopting entropy weight method and the TOPSIS method, and based on the system theory and supplyanddemand theory, the paper conducts an analysis of the dynamic changes and regional differences of water resources carrying capacity in 11 districts and counties between 2015 and 2019. The results find that the water resources carrying capacity in the 11 districts and counties in the Three Gorges Ecological and Economy Corridor of the Yangtze River on the whole presented an upward trend, and the carrying capacity basically maintained at a low level, with the ecological subsystem and the social economic subsystem making the biggest contribution. The central and local governments play a leading role in the conservation and protection of water resources in the reservoir area. And the imbalance of supply and demand of water resources in each district has been slightly eased. As such, the paper proposes that the macro management should continue to be brought into full play to further enhance the green upgrading of the industrial structure, water resources utilization and quality government in the reservoir area.