MASSAGE MECHANISM AND CHAIR-TYPE MASSAGE MACHINE Provided is a massage mechanism capable of performing a gripping massage while holding a treatment region between a gripping treatment element and a treatment element facing thereto.A massage mechanism (7) of the present invention includes: a gripping arm (27) provided with a gripping treatment element (28) on one side; a first arm (11) provided with a first treatment element (13) at a distal end thereof; and gripping massage means adapted to drive the gripping arm (27) and the first arm (11) to generate a massage operation, and in this configuration, the gripping massage means is configured to drive the gripping arm (27) so that the gripping treatment element (28) is moved close to and separated from the first treatment element (13). (Figure 5)