Circular vibrating screen uses the motor driving two pairs of exciters on the both sides of screen box through the couplings with rubber type element. The two pairs of exciters, connecting with the universal joint coupling in the middle, rotate synchronously under the unequal centrifugal force. Under the action of the exciters and the spring group, the screen box can be vibrated in full amplitude by the near circular track. Meanwhile, the raw materials on the screens are thrown under the action of the screen box vibrating. During the process of raw materials jumping and rolling forward, the materials smaller than the sieve mesh will fall down layer by layer until out of the screen box.