新中国成立后，党和国家领导人非常重视兴修水利工程。水利工程建设的发展，是随着社会经济发展而发展的。密云县水利工程建设发展过程分如下几个阶段。　　第一阶段是抗旱保丰收。密云县是山区县，历来人称“密云不雨”、“十年九旱”。建国初期，生产力低下，没有抵御旱灾 After the founding of New China, the party and state leaders attached great importance to the construction of water conservancy projects. The development of water conservancy projects is developed along with the social and economic development. Miyun County water conservancy project construction and development process is divided into the following stages. The first phase is drought-harvest security harvest. Miyun County is a mountainous county, has always been called “Miyun not rain”, “ten years nine drought.” In the early days after the founding of New China, productivity was low and no drought was prevented