A skin cleaner includes a case configured to form an accommodation space therein; a bracket configured to be accommodated in the accommodation space; a rotor configured to be rotatably disposed on the bracket; a rotation mechanism configured to be accommodated in the accommodation space and to rotate the rotor; an ultrasonic head configured to be disposed on the bracket and having a built-in ultrasonic vibrator therein; a vibration motor configured to be accommodated in the accommodation space and to vibrate the bracket; a plurality of brush units having magnets disposed on a surface facing the case and configured to be selectively disposed on the rotor; and a sensor configured to be accommodated in the accommodation space and to detect the magnet.