PROBLEM TO BE SOLVED: To provide a massage unit, while being small, capable of ensuring a sufficient advance amount of a massage mechanism and adjusting intensity effectively.SOLUTION: A massage unit 8 comprises: a body frame 30 a massage mechanism 31 having a treatment element 34 a support frame 32 for supporting the massage mechanism 31 an advance/retract drive part 15 for advancing and retracting the massage mechanism 31 with respect to a treated part and a link 33 connecting the body frame 30 and the support frame 32, and swinging in a back-and-forth direction. In the link 33, when the massage mechanism 31 is retracted most, connection parts A1, A3 with the body frame 30 are positioned in front of connection parts A2, A4 with the support frame 32.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2016,JPO&INPIT