PURPOSE: To constitute the massage machine so that an operating position can be detected exactly by a sensor for detecting the operating position of therapeutic pieces and a therapeutic unit through the medium of rotational positions of the respective driving motors, and the therapeutic operation based on a result of this detection can be executed correctly.

CONSTITUTION: With respect to a result of detection of the left and the right position sensors for detecting the left and the right position of therapeutic pieces 4, 4 operated to the left and the right in a therapeutic unit 3 in accordance with a rotation of a massage driving shaft 31, based on a cumulative value of a rotation of a massage driving motor M1 which becomes a driving source of the massage driving shaft 31, when the left limit switch 45 or the right limit switch 46 arranged so as to face the left and the right operating route of the therapeutic pieces 4, 4 is turned on by abutting of supporting blocks 40, 40 of the therapeutic piece 4, a correction for replacing it with a specific value corresponding to the provided position of the limit switch 45 or 46 is executed.