The present invention provides a machining center that efficiently machines a long workpiece using two pallets. A machining center 1 includes a saddle 30 that moves in a Y axis direction on a bed 10, and a table unit 50 moves in an X axis direction on the saddle 30. At a right end and a left end of the front surface of the bed 10, setup stations 110 and 120 are respectively disposed. While a spindle head 80 is machining a workpiece W2 with one pallet 140 placed on the table unit 50, a workpiece W1 can be set up onto the other pallet 130. A long workpiece can also be machined on the two pallets 130 and 140 placed on the table unit 50.