There is provided a massage machine which performs treatment in such a way that a pair of treatment devices is operated in conjunction with each other, and while one of the treatment devices holds a front side of a shoulder of a treatment subject person, the other one of the treatment devices presses the shoulder from above.The massage machine includes a seat unit on which the treatment subject person sits, a backrest unit that supports a back of the treatment subject person, a base 210 disposed in front of the backrest unit, and a shoulder treatment mechanism 200 attached to the base 210 so as to perform a massage on the shoulder of the treatment subject person. The shoulder treatment mechanism 200 includes a drive unit having an output shaft 235 attached to the base 210 and rotated by supplied power, a first treatment device 261 which press the shoulder of the treatment subject person from above, and a second treatment device 265. When viewed along a width direction of the backrest unit, the second treatment device 265 is located in front of the first treatment device 261. In accordance with rotation of the output shaft 235, the first treatment device 261 and the second treatment device 265 perform the treatment on the shoulder of the treatment subject person in conjunction with each other so as to change a distance between the first treatment device 261 and the second treatment device 265.
