The air shield dam is a new type of hydraulic structure that combines the advantages of rubber dams and steel plate dams. The dam was developed by the United States in the 1990s. In 2008, the Ministry of Water Resources included the air shield dam in the national promotion plan. The air shield dam absorbs the essence of traditional movable dams and abandons the shortcomings of traditional movable dams. It has simple structure, short construction and installation period; outstanding flood control and flood crossing capabilities, safe and reliable operation; continuous control of water height and operation status; stronger pollution cleaning and silt removal capabilities; higher water retaining and water passing capabilities; short filling and discharge time, simple operation and management; ultra-long service life, high comprehensive benefits; strong earthquake resistance, high adaptability to foundations; good landscape effects, etc.