The present invention relates to a wearable lower limb human-machine assistive device, which is mainly operated by a control unit operating the kinetic energy supply device of the operating device, so that the control unit controls the kinetic energy supply unit to supply the power source kinetic energy of the lower limb auxiliary device, so that the power source utilization The pulling member pulls tightly, so that the thigh segment support frame and the calf segment support frame are in an upright state, so as to assist the user under the armpit to stand up； thereby, the user is allowed to stand up in the state of the armpit. Therefore, when the user's hand is loaded with heavy objects, the assistance of the lower limb auxiliary device can be used to more easily and effortlessly stand up, which not only makes the user easy and labor-saving, but also prevents the user from being injured. The situation occurs, and the utility model is more effective in its overall implementation.本創作係有關於一種穿戴式下肢人機輔具，其主要係以操作裝置操作動能供應裝置之控制單元作動，令控制單元控制動能供應單元供應下肢輔助裝置之動力源動能，讓動力源利用將拉引件拉動緊繃，使大腿段支撐架與小腿段支撐架之間呈直立狀態，即可輔助蹲下之使用者向上站起；藉此，以輔助使用者於蹲下的狀態向上站起，使得於當使用者手部負載重物時，亦可利用該下肢輔助裝置的輔助更為輕鬆省力的向上站起，不僅讓使用者達到輕鬆省力方便之目的，且更可防止使用者受傷的情況發生，而在其整體施行使用上更增實用功效特性者。
