According to one embodiment, an ultrasonic motor includes a transducer, a driven member, a pressing mechanism unit. The transducer includes stacked piezoelectric sheets on which internal electrodes are formed. The internal electrodes form driving activated areas and vibration detection activated areas in the transducer. The driving activated areas are located in portions which correspond to a node of the longitudinal vibration and an anti node of twisting vibration, so as to be symmetrical about a central plane in the stacking direction and a plane which is perpendicular to the stacking direction and includes the center axis, and are polarized in the stacking direction. The vibration detection activated areas are located in portions which correspond to a node of the longitudinal vibration and an anti node of the twisting vibration and are closer to the central plane than the driving activated areas, and are polarized in the stacking direction.