To provide a housing structure of motor capable of reducing a space required for an outside-diameter side surface of a housing and realizing high- density arrangement.

Notch parts 16, 19 are respectively formed on an attaching surface 5a of a plate 5 and the outside-diameter side surface 9a of a cover 9, on which an output shaft 12 of an oscillatory wave motor is protruded. A terminal 15a of a feeding member 15 constituted of a flexible wiring board is fixed by a screw on a receiving section 16a inside the notch 16. On a signal terminal 15b of a terminal 15a, a signal wire in a cable 20 introduced from a driving circuit and added with an alternating signal is soldered. In attaching an oscillatory wave motor to an attaching plate 21, a sealing member 17 is fitted with the notch 16 and a clearance thereof is filled with sealer. On the outside-diameter side surface of the oscillatory wave motor, there are no members such as connector attaching members and connectors, thus requiring no spaces therefor.