A machine tool includes: a revolving-type turret including a plurality of grips provided along a circumferential direction thereof, each of the plurality of grips being configured to hold the tool attached to a spindle; a first rotary shaft configured to rotate about a swing axis of the turret; a second rotary shaft extending in a direction substantially perpendicular to the first rotary shafts, and configured to rotate the turret about a revolving axis; a motor configured to rotate the first rotary shaft; a power transmission unit including a first gear connected to the first rotary shafts and a second gear connected to the second rotary shaft, the second gear being configured to be meshed with the first gear; and a rotation prohibition unit configured to, when swinging the turret, prohibit rotation of the second rotary shaft in order to swing the second rotary shaft about the first rotary shaft.