PURPOSE: Provided is a non-contact toothbrush which uses a tiny bubble generated from ultrasonic wave to eliminate tiny bacteria in teeth or gum so that it helps to eliminate various bacteria without contacting teeth with a brush. CONSTITUTION: The non-contact toothbrush is characterized by comprising the parts of: a brush head which includes a brush body at one side, a pole-typed booster and an ultrasonic vibrating sheet at the other side; a power converter and a power code which are connected to the brush body to supply power for each component; a timer switch which is fixed at one side of the brush body; and a brush head cover which distributes and radiates sound pressure and cavitation generated from ultrasonic vibration into washing liquid in users' mouth.
