The sustainable development of water conservancy and water power and the pumped storage are described .Now in some areas in China the water resources are scant or nearly and further development will be restricted. The construction of different types of pumped storage as the supplements of the ordinary water power are favorable to the sustainable development of water concervancy and water power. This new approach which combines water concervancy, water power and pumped-storage and links with the local electrical development mode will give the original water conservancy and water power new vigor,hence will create a quite new prospect of the sustainable development of the water conservancy and water power (including poumped storage) in China.