The ecological spilway gate mainly includes water retaining gate panel, air bladder, between panelconnection strip, hinge flap connection strip, control system (pneumatic and electric controlled) ancanchoring system. lt is characterized in that the main body of the spillway gate is equipped with a gateheight adjustment and restraining device, the front of the dam is equipped with an aeration device toremove sediment, and a biological channel is set at the bottom of the dam, which has many advantagessuch as perfect structure and ecological environment protection.