Climbing assist exoskeleton is a professional battery-driven wearable lower limb exoskeleton specially developed for mountain climbing, hillside trekking, mountain patrol and steep slope walking. Built with slope-sensitive real-time gait sensors and high-torque adaptive servo drive system, this climbing assist exoskeleton can accurately perceive uphill gradient changes and output targeted boosting torque to hip and knee joints, effectively offsetting body weight load, lowering leg muscle tension and reducing long-term knee compression during continuous climbing. The ultra-light high-rigidity composite frame comes with IP54 dustproof, waterproof and scratch-resistant shell, resisting mud, rain splash and gravel abrasion to adapt to rough mountain terrain. Fully adjustable thick soft padded binding straps fit users of various heights and leg circumferences, equipped with swappable high-capacity lithium batteries to support long-hour uninterrupted climbing assistance. Ergonomic flexible joint structure completely retains natural climbing and descending movements, with simple one-button control easy for mountaineers, forest rangers and mountain workers to operate. Multiple built-in safety mechanisms including overload protection and balance stabilization prevent slip risks and secondary injuries on rugged slopes. This durable climbing assist exoskeleton realizes smooth human-machine coordination, greatly cutting climbing fatigue and extending continuous mountain travel endurance for outdoor climbers and field operators.