There is provided an electrically driven brush device allowing a plurality of protrusions to be pressed evenly against an entire portion of a scalp. The electrically driven brush device comprises a device main body 2 serving as a drive section and a brush member 3 operated by the device main body 2. The brush member 3 comprises a body plate 4 made of a flexible material and a plurality of protrusions 5 protruding from a surface 4S of the body plate 4. The device main body 2 is provided with a frame 6 holding an edge 4A of the body plate 4. The frame 6 is provided so as to be curved so that an outer section 6B thereof is formed further away from the device main body 2 than an inner section 6A thereof. As a result, even if the body plate 4 of the brush member 3 and the frame 6 holding the body plate 4 are formed in noncircular shapes, the uniformity of the pressing force of the protrusions 5 against the scalp S can be improved.
