The invention discloses a brush plate planting bore quick detection device. The device comprises a detection box body, two sides of an inner bottom surface of the detection box bod are fixedly connected with support columns through bolts; the upper ends of two support columns are fixedly connected with a placing table through rivets; a placing slot is arranged on an upper end surface of the placing table, and fixed slots are formed on the inner walls of four sides of the placing slot; the inner wall of each fixed slot is in sliding connection with an extrusion block, and a fixed spring is fixedly connected between the extrusion block and the bottom surface of the fixed slot; an inner top surface of the detection box body is fixedly connected with a cylinder one through the screw, an outputend of the cylinder one is fixedly connected with a detection plate through the screw, the detection slots are formed at the lower end surface of the detection plate, multiple detection slots are uniformly distributed at a lower end surface location of the detection plate, and sliding blocks is in sliding connection in the detection slots. The device is convenient to detect and high in efficiency, the working efficiency is greatly improved, and the labor cost is reduced.