Mountain climbing robot is a heavy-duty terrain-adaptive wearable lower limb exoskeleton specially developed for mountain climbing, steep slope trekking, mountain forest patrol and geological survey with heavy backpack loads. Equipped with high-sensitivity gradient detection sensors and high-torque low-power adaptive servo drive system, this mountain climbing robot instantly identifies uphill, downhill and rugged flat terrain, and outputs real-time targeted boosting torque to hip and knee joints to offset body weight and carrying burden. It effectively relieves long-term tension of thigh and calf muscles, reduces persistent compression wear on knee joints and delays extreme fatigue during all-day mountain activities, while maintaining balanced and stable bionic gait on uneven gravel mountain roads. The ultra-light high-rigidity industrial composite frame adopts an IP54 dustproof, splash-proof and scratch-resistant outer shell, which can resist mud splashes, sudden light rain and gravel friction to adapt to harsh and changeable wild mountain environments. Fully adjustable thick soft padded wrapping straps fit users of all heights and leg circumferences, matched with swappable large-capacity lithium battery packs to support long-hour uninterrupted climbing assistance. Ergonomic flexible joint design does not restrict natural stepping, climbing and descending movement range, with intuitive one-touch intelligent control that mountaineers, forest rangers and mountain surveyors can master without complex professional training. Built-in overload protection and anti-slip balance stabilization safety modules effectively prevent slip, fall and secondary injury risks on steep rugged terrain. This durable mountain climbing robot achieves smooth human-machine motion synchronization, greatly cuts climbing fatigue and extends continuous mountain travel endurance for outdoor climbers and mountain field staff.