Chair-type massage machine In a chair-type massage machine capable of store a backrest part with the height lowered, to make it possible to give a massage in a relaxed posture in which the body is stretched in the horizontal direction and give a massage to a user of large build. A chair-type massage machine (1) of the present invention is a chair-type massage machine (1) including: a seat part (2); a backrest part (3) that is disposed at the back of the seat part (2) and provided so as to be able to support the back of a user; and a massage part that is incorporated in the backrest part (3) and provides a massage action to a user sitting on the seat part (2), and includes backward extension means (7) adapted to extend the backrest part (3) backward with the seat part (2) as a reference. (Figure 3)