The invention discloses an efficient crushing and recycling device for waste electronic installation casings, the efficient crushing and recycling device comprises a fixing box, a crushing box and a feeding port, wherein the crushing box is connected with the upper end of the fixing box in a run-through manner, and the feeding port is connected with the upper end of the crushing box in a run-through manner. The lower end of the fixing box is fixedly connected with a plurality of brackets, and the lower end of the fixing box is symmetrically provided with two arc-shaped discharge openings; thelower end side wall of the fixing box is fixedly connected with a motor, the output end of the motor is fixedly connected to one end of a rotating shaft, and the other end of the rotating shaft penetrates a disc and is connected with a first gear. The side wall of the disc is fixedly connected to the inner side wall of a blanking tube by a plurality of fixing rods. The upper end side wall of the blanking tube is fixedly connected to the inner side wall of the crushing box, and a section of the side wall of the blanking tube is fixedly connected to the inner side wall of a blanking hole arranged at the upper end of the fixing box. The simple crushing device can finely crush electronic casings by three times of crushing, and the cost is very low.