The present invention provides a shower device capable of being fitted with attachments capable of exhibiting a massage function or a body brush function, for example. The shower device according to the present invention comprises a grip having a water supply passage therein, and a shower head provided with a shower-use water chamber in which a water spraying plate is disposed, and on a rear surface side of the shower-use water chamber a fin-use water chamber in which a fin capable of rotating by means of flowing water is disposed. A structure to which an attachment can be fitted is provided on an outer surface of the fin-use water chamber, and as a means whereby the rotating motion of the fin transfers a rotating motion to the fitted attachment, a motion rotating shaft (A) coaxial with a rotating shaft of the fin is provided on the fin-use water chamber side, disposed in such a way as to protrude from the fin-use water chamber.