The invention discloses a human-like lower limb system. Oscillating cylinders are used as power elements to drive hip joints, knee joints and ankle joints to move, and the human-like lower limb systemhas the function of completely simulating the lower limb movement of a human body. An artificial lower limb is mainly composed of thigh components, shank components, feet, self-lubricating ball headrod end knuckle bearings, the oscillating cylinders, belt wheels and connecting parts. the plurality of oscillating cylinders drive branch chains composed of parallel rods to form the hip joints capable of stretching, unfolding and rotating in a space, the ankle joints and the plurality of oscillating cylinders move up and down through the belt wheels to form the knee joints capable of stretching,and the hip joints capable of unfolding and unfolding. The human-like lower limb system is driven by the oscillating cylinders, and has the characteristics of being compact in structure, not prone tobeing blocked, good in flexibility and the like, and can be used for teaching and exhibition.