A clothes treatment apparatus comprises: a frame; a hanger body configured to move with respect to the frame and provided to hang clothes or clothes hangers; a vibration module that generates vibrations by comprising at least one eccentric portion that rotates around at least one predetermined rotational axis in such a way that the weight is off-center, and that is connected to the hanger body to transmit the vibrations; and at least one elastic member that exerts an elastic force on the vibration module when the vibration module vibrates, wherein the angular speed of the eccentric portion is changeable.