随着首都社会和经济的发展，北京的防洪工程体系和非工程体系都得到了快速发展，已具有一定的防洪能力。但距中央对北京的要求和北京市防汛面对的特殊情况，防汛工作仍形势严峻。北京的防汛重点一是永定河，二是城区，三是泥石流易发区。永定河是全国四大重点防洪江河之一，是 With the social and economic development of the capital, Beijing’s flood control engineering system and non-engineering system have been rapidly developed and have certain flood control capabilities. However, from the central government’s request for Beijing and the special situation faced by Beijing’s flood prevention, the flood prevention work is still grim. The focus of flood prevention in Beijing is Yongding River, the second is the urban area, and the third is the landslide-prone area. The Yongding River is one of the four major flood control rivers in the country.