A kind of composed structure of far infrared leg foot thermotherapy machine is to set control unit on the what ontology, the first heating unit, the second heating unit by the ontology and group of a tubbiness, is formed with sprayer. Mainly it is that the what control unit outer rim sets a panel, there is several control keys and jack on the panel; First heating unit is set into the what body bottom portion again, and second heating unit sets the room peripheric surface of the what ontology, which can produce far infrared. And water can be filled inside the sprayer, and be equipped with atomization structure, one end and the control unit are electrically connected, and power initiation Hou can spray misty aqueous vapor outward. Thereby, it is available for users to and leg foot position is irradiated with far infrared, to promote the blood circulation of leg foot position, eliminate muscular fatigue and neuralgia that is stiff, mitigating muscle, and in irradiation process, and the fog moistening skin that can pass through the sprayer generation promotes the effective utilization of far infrared leg foot thermotherapy machine.一種遠紅外線腿足溫熱治療機之組成結構,係由一桶狀之本體,以及組設於該本體上之控制單元、第一加熱單元、第二加熱單元,與噴霧器所組成。主要係於該控制單元外緣設一面板,該面板上具有若干控制鍵及插孔;再將該第一加熱單元設於該本體底部,而該第二加熱單元設於該本體之容室四周面,該第一、第二加熱單元通電加熱後可產生遠紅外線。而該噴霧器內部可裝水,並設有霧化結構,一端與該控制單元電性連接,電源啟動後,可向外噴灑霧狀水氣。藉此,可供使用者以遠紅外線照射腿足部位,以促進腿足部位之血液循環、消除肌肉疲勞及僵硬、緩和肌肉之神經痛,而在照射過程中,並可透過該噴霧器產生之霧氣濕潤皮膚增進遠紅外線腿足溫熱治療機的使用效能。