According to one embodiment, a medical image diagnosis apparatus includes a bed, a first medical image diagnosis device, a second medical image diagnosis device and processing circuitry. The bed supports a table top which is movable in a shorter-side direction of the table top. The first medical image diagnosis device has a first bore and is adjacent to the bed. The second medical image diagnosis device has a second bore and is adjacent to the first medical image diagnosis device, the first bore and the second bore being continuing with each other. The processing circuitry control a position of the table top with respect to the shorter-side direction based on an amount of position gap between the first bore and the second bore.