The invention discloses an intelligent three-proofing gate, including a gate face, a left side panel, a right side pane, a left gate support, a right gate support, a sliding plate, an anti-violence plate, a left gate frame, a right gate frame and a guide rail. The left side panel and the right side panel are located on the left and right sides of the gate face, and the left gate support and the right gate support are correspondingly located on the outer sides of the left side panel and the right side panel. According to the intelligent three-proofing gate, installation and construction on siteare easy, the destructive effect and the engineering amount are small. A normal gate-closing state and a waterproof sealing gate-closing state can be arranged, the normal gate-closing state is conducted generally, and lift of a mechanism is prolonged. The excellent small moving object resistance, water flowing-in resistance and violence and crashing resistance properties are achieved.