The utility model provides a kind of abdomen back massage machine comprising driving device, translation building block and massage machine. Driving device includes electric motor and drive shaft. Electric motor is used to coupling driving axis and provides rotary driving force. Translation building block connection couples on the driving shaft, and rotary driving force is converted into a swinging driving by translation building block. Massage machine one end is set on translation building block and couples with translation building block, and massage machine is driven by swinging driving and generates swing along the axis direction of drive shaft. In the utility model abdomen back massage machine, the actuation direction of massage machine meets abdomen muscle of back lines, can effectively relax the abdomen and the muscle group at back.本新型提供一種包含驅動裝置、轉換構件及按摩裝置的腹背部按摩機。驅動裝置包含電動馬達及驅動軸。電動馬達用來耦合驅動軸而提供旋轉驅動力。轉換構件連接耦合在驅動軸上，而且轉換構件將旋轉驅動力轉換成為一搖擺動力。按摩裝置一端套設在轉換構件上而且與轉換構件耦合，按摩裝置受搖擺動力驅動並且沿著驅動軸之軸心方向產生擺動。在本新型腹背部按摩機中，按摩裝置的作動方向符合腹背部肌肉紋路，可以有效地放鬆腹部及背部的肌肉群。
