The invention relates to a turning method that can easily reduce or suppress the occurrence of a chatter vibration during turning, and achieve high productivity, and a machine tool using the same. The turning method of a workpiece by using a turning device including one or two main spindles and more than two cutting tool rests is characterized by holding the workpiece to a rotatable main spindle, and turning the workpiece in a state in which a first edge of a first cutting tool is offset by a given offset angle ([phi]1) around a rotation center axis with respect to a second edge of a second cutting tool when the first edge and the second edge are situated opposite to each other at an angle of 180 DEG around the rotation center axis.