The weight support manner is proposed to enhance wear comfort of the wearable exoskeleton. The design of one-way clutch with the mechanism of ratchets and pawls reduces the weight of the exoskeleton. In the aspect of control, through gait analysis and the feedback control which is the current PID control in PID mode as the inner ring and the plantar sensor and the seat sensor as the outer loop, it achieves intelligent human-computer interaction. The exoskeleton weighs nearly 12.5 kg. The support is about 10 kg for standing and 3 kg for walking. The battery life is more than 2 hours.