A wool cutting device for brush production and processing, including a supporting mechanism, a wool cutting mechanism, a wool pressing mechanism, a wool binding mechanism, and a rubber band supply mechanism. The wool cutting mechanism includes an electric telescopic rod, and a cutting blade is fixedly installed at the lower end of the movable rod of the electric telescopic rod , The wool pressing mechanism includes an electric slide rail fixedly installed on the left side wall of the fixed rod of the electric telescopic rod, an electric slide block is installed on the electric slide rail, and a pressing rubber block is arranged below the electric slide block. In the present invention, after the wool is cut through the wool pressing mechanism and the wool cutting mechanism, the horizontal bar is in contact with the spherical limit block and displaced by using the square plate during the rotation process, and at the same time drives the second connecting rod and the restraint rod, so that the restraint rod When the state of opening and closing changes, the rubber band is bound on the outside of the wool, so that the cutting and binding of the brush wool are completed one after another, so that the wool is not easy to be messed up during the movement, reducing the operator's operating time and improving production efficiency.