Provided are a treatment unit and a massage machine which realize treatment with a twisting motion added thereto.Means for ResolutionA seat part unit 10 includes a four-finger part 1 for pressing a person to be treated, a treatment part 2 having the four-finger part 1, an output shaft 30 which drives the treatment part 2, a drive part 3 which rotates the output shaft 30, and a cam 4 which is a swash plate eccentric cam which rotates integrally with the output shaft 30, in which the treatment part 2 oscillates in a direction along a rotation axis G of the output shaft 30 and a direction intersecting the direction without rotating with the rotation of the cam 4.本發明的課題是提供一種實現增加了扭轉動作之施療之施療單元及按摩機。座部單元10具備：四指部1，對被施療者進行按壓；施療部2，具有四指部1；輸出軸30，驅動施療部2；驅動部3，使輸出軸30旋轉；及凸輪4，其是與輸出軸30一體旋轉之斜盤偏心凸輪，施療部2並不隨著凸輪4的旋轉而旋轉而是在沿著輸出軸30的旋轉軸心G之方向和與該方向交叉之方向之間擺動。
