The air shield dam is a new type of hydraulic structure that combines the advantages of rubber dam and steel plate dam. 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 the characteristics of 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 removal 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,