Machine tool

A machine tool comprising:

• a turret having a plurality of stations including first and second stations at each of which a tool is able to be attached;
• a tool storage unit capable of storing a plurality of tools therein;
• a machining control unit for controlling a tool attached to the turret in accordance with a machining program, to machine a workpiece;
• a tool changing unit for replacing the tool attached to the turret with a tool stored in the tool storage unit;
• and
• a tool pattern memory for memorizing, as a first tool pattern, a combination of tools attached at the first and second stations which is associated with a first part of the machining program and memorizing, as a second tool pattern, a combination of tools attached at the first and second stations which is associated with a second part of the machining program after the first part, wherein
• when machining work is stopped during execution of the second part, the tool changing unit performs tool change in accordance with a past tool pattern that is saved to be associated with a part of the machining program before a time of stop on the machining program.