A motorized table apparatus comprises: a support unit for supporting a movement table so as to allow it to move in a single axis direction relative to a stationary unit which is fixed to the movement table; a slide member which is equipped on the movement table and which has a length equivalent to, or more than, a moving range of the movement table; an ultrasonic oscillators which is equipped on the stationary unit, which moves the movement table, and which comprises a single piezoelectric body and two drive elements; and a pressure application unit for supporting so that the two drive elements of the ultrasonic oscillator and the slide member are pressed by a constant force, wherein a plurality of the ultrasonic oscillators are equipped.