According to one embodiment, a medical image diagnosis apparatus includes a gantry, a first frame, a second frame, a support base, and control circuitry. The first frame supports a table top. The table top is movable in a longitudinal direction of the table top. The second frame supports the first frame. The first frame is movable in the longitudinal direction. The support base is equipped with an X link that supports the second frame. The second frame is movable in a direction vertical to a floor surface. The control circuitry moves the first frame in the longitudinal direction based on operation information of a drive shaft of the support base to correct a change in position of the first frame in the longitudinal direction in accordance with movement of the second frame in the vertical direction.