An analysis on the natural endowment and the comprehensive application of the water resources in 31 provinces of China shows that the difference and the unbalance in water resource limit the development of the regional economy,and that the comprehensive application of the regional water resource is closely related to the capacity of the water conservancy facilities.Therefore,some suggestions are raised to open up the limited water resources in the light of local circumstances so that different regions are developed in the direction of water-saved society.