Disclosed is a magnet vibration device, which is simple in structure, has little chance for breakdowns, and is applicable to various fields using vibration. The magnet vibration device includes: a case (100) that is changeable in shape by external pressure and has a restoring force when the shape of the case (100) is changed a vibration plate (220) disposed inside the case (100) and changed in position in connection with the changed shape of the case (100) a first magnet (230) mounted on the vibration plate (220) and a second magnet (240) mounted at a position where a repulsive fore is generated between the first magnet (230) and the second magnet (240) when the position of the vibration plate (220) is changed.