PURPOSE: To provide an electromagnetic induction charger which can efficiently perform charging operation, has a simple structure, and can be manufactured at a low cost.

CONSTITUTION: An induced coil 56 is provided in the internal middle part of a tooth brush main body 12. In addition, a rectifier circuit which rectifies an alternating current generated in the coil 56, battery 62 which is charged by using a direct current front the rectifier circuit, and motor 66 are also incorporated in the main body 12. The supporting section of a charger 14 supports the main body 12 in an attachable/detachable state and has a mounting base 16 and arm 18 which has a through hole 80 and can support the main body 12 passed through the hole 80 by its middle section. An induction coil 72 is put around the through hole 20 of the arm 18 and induces an electric current in the induced coil 56 in the main body 12 supported by the supporting section of the charger 14. An AC power source section 74 excites the induction coil 72.