A gait rehabilitation machine and a method of using the same for lower-limb rehabilitation. The gait rehabilitation machine includes: a frame a rear supporting member provided at the frame so that the back side of a human body can lean against the rear supporting member a thigh supporting member corresponding to a thigh of the human body and pivotally connected to the frame a shank supporting member corresponding to the corresponding shank of the human body, pivotally connected to the thigh supporting member, and having a pedal to be stepped on by the human body a knee supporting member corresponding to the corresponding knee of the human body and provided at the thigh supporting member or the shank supporting member and a transmission device for driving the shank supporting member to move. Thus, a patient can do lower-limb gait rehabilitation exercise without using a suspension system.一種步態復健機及使用方法,係提供病友下肢復健使用,該步態復健機包含有:一支架;一後支撐件,係設置於該支架供人體後側靠抵;一大腿支撐件,係對應人體大腿,樞接該支架;一小腿支撐件,係對應人體小腿,樞接該大腿支撐件,該小腿支撐件具有一踩踏部,供人體踩踏;一膝蓋支撐件,係對應人體膝蓋,設置於該大腿支撐件或該小腿支撐件;以及一傳動器,係帶動該小腿支撐件移動。藉此,可在不使用吊掛系統的情況下進行下肢的步態復健運動。11...支架114...立柱115...扶手13...後支撐件131...固定架132...承靠墊14...大腿支撐件162...限位件163...限位槽164...導引柱17...小腿支撐件171...踩踏部172...導引孔173...平板部18...傳動器181...基座182...橫向移動裝置183...上下移動裝置184...橫向移動平台185...上下移動平台22...束帶