Warehouse door opening alarm device

The utility model relates to the technical field of dangerous goods warehouses, in particular to a warehouse door opening alarm device which comprises a frame body, a door opening is formed in the middle of the frame body, inner grooves are formed in the top end and the bottom end, located on one side of the door opening, of the frame body, and a door plate is movably installed between the two inner grooves. An audible and visual alarm is arranged outside the top end of the side, away from the door plate, of the frame. The side plate is fixedly connected to the side, close to the door plate, of the frame body, a plurality of positioning columns are fixedly installed on the surface of the side, close to the door plate, of the side plate, and a plurality of positioning grooves are formed in the side, close to the positioning columns, of the door plate. According to the anti-theft door, the frame body, the door opening, the door plate, the audible and visual alarm, the controller and the distance sensor are used