In order to realize the grand goal of building an overall Well-off society in our country and to support a comprehensive, coordinated and sustainable economic and social development, the water conservancy development and reform are facing new situations and tasks. Our team of experts undertook the work of "Research on Investment Scale and Safeguards in the 12th Five-year Plan of National Water Conservancy Development". In this project, we analyzed the situation facing the development and reform of water conservancy, planned the overall train of thought and goals, and clarified the overall layout and major tasks of water conservancy. Flood control and disaster reduction, development and utilization of water resources and disposition, risk reservoir reinforcement and reservoir construction, rural water conservancy, water resources protection and water environment management, soil and water conservation and ecological construction. And study the main tasks of water conservancy reform and management. According to the mission objectives, the investment scale and various safeguard measures for water conservancy development during the 12th five-year plan period are put forward.