To provide a chair-type massage machine which sets the body of a user at a specified position on the seat and the back rest part of the machine.

An arm rest body (positioning means) 60 which is movable in the crosswise direction to the body shape of a user and positions the body in the crosswise direction with a seat part 20 and a back rest part 30, is provided on the both sides of the seat part 20 of a chair body 1 with the seat part 20 and the back rest part 30. Thus the user sitting on the seat part 20 can be set in a best fitting position to his body on the chair body 1.