The present invention is intended to provide an electrically driven toothbrush in which a handle part is made thin and slim to improve operability and design and an induction coil is assembled into an interior member protruding outward from the exterior case to allow non-contact electric charging. A handle part (2) as a handle includes: a metallic cylindrical exterior case (4) that has a first end portion (4a) and a second end portion (4b) an interior member (5) that has a small end portion (5a) inserted into the first end portion (4a) and a large end portion (5b) locked at the second end portion (4b), and is installed in the exterior case (4) by inserting the small end portion (5a) into the exterior case (4) from the second end portion (4b) side a restriction member (7) that is fitted and fixed onto the small end portion (5a) protruding outward from the first end portion (4a) via a coupling structure (6) and is engaged with the first end portion (4a) of the exterior case (4) to restrict falling of the exterior case (4) from the interior member (5) in conjunction with the large end portion (5b) and a vibration generation means (9) that is assembled into the interior member (5) to vibrate a replacement brush (3).
