The object of the present invention is to provide a massage machine capable of performing favorable kneading massage regardless of physical size of the user, and to provide a massage machine which performs a hand simulated massage as if it is performed by a masseur. A massage unit of this invention includes a treatment head 83； an arm 84 which supports the treatment head 83； a drive shaft 92 which supports the arm 84 and enables the treatment head 83 to approach to or away from a treated portion； a movable part 97 which is operable in a direction of being away from the treated portion while the treatment head 83 is in contact with the treated portion by a force equal to or greater than a predetermined force； and a force applying means 100 which applies a force to the treatment head 83 along the approaching direction. The arm 84 includes a first arm 95 which supports the drive shaft 92； a second arm 96 which supports the first arm 95 through the movable part 97； and a rotating shaft A3 used as the movable part 97 for rotatably connecting the second arm 96 to the first arm 95. The force applying means 100 applies a force to the second arm 96 for rotation in a direction of making the treatment head 83 approach to the treated portion.本發明之目的在於提供一種可不限體型地進行良好之揉捏按摩之按摩機，且提供一種進行宛如由按摩師實施般之類似於人手之按摩之按摩機。本發明之按摩單元具有：施療頭83；臂84，其支承施療頭83；驅動軸92，其支承臂84並且使施療頭83相對於被施療部接近或背離；可動部97，其設為於施療頭83以既定程度以上之力接觸於被施療部時可向自被施療部背離之方向動作；及施力手段100，其對施療頭83向上述接近方向施力。臂84具有：第1臂95，其支承於驅動軸92；第2臂96，其透過可動部97而支承於第1臂95；及作為可動部97之旋動軸A3，其將第2臂96可旋動地連結於第1臂95。施力手段100係向使施療頭83接近於被施療部之方向對第2臂96之旋動施力。
