The present invention provides a machine tool capable of enhancing approachability to a spindle to improve work efficiency even when it includes a workpiece changer. The present invention includes: a bed 2; a saddle 4 disposed on the bed 2 to be movable in a forward and backward (Y-axis) direction in a front view of the machine tool 1; a table 5 disposed on the saddle 4 to be movable in a right and left (X-axis) direction; a column 3 having a shape of a gate bridged over a travel range of the table 5 and fixed on the bed 2; a spindle head 6 disposed on the column 3 to support a spindle 7 and movable in a vertical (Z-axis) direction; a workpiece changer 12 that turns a workpiece together with a pallet P or turns the workpiece independently, for workpiece replacement, between a workpiece standby position B set on a back face side of the bed 2 and the table 5 placed at a workpiece change position C, the workpiece changer 12 being disposed so as to set the workpiece change position C at a position under the column 3.