Exoskeleton strength refers to the load-bearing capacity and power-assisted performance of wearable exoskeleton devices, a core technical indicator that determines applicable scenarios and user safety. Different types of exoskeletons are designed with targeted strength parameters according to usage demands. Passive industrial exoskeletons mainly rely on mechanical leverage and elastic structures to share waist and shoulder loads, effectively reducing the muscle force required for frequent lifting and bending, with rated bearing strength ranging from dozens of kilograms to ease cumulative fatigue and avoid lumbar injuries. Powered exoskeletons deliver greater auxiliary strength through servo motors, enabling wearers to carry heavier cargo for a long time or helping mobility-impaired patients support their body weight to stand and walk safely. Engineers optimize frame strength by adopting high-rigidity materials such as carbon fiber and aviation aluminum, ensuring structural stability under rated load without deformation or fracture. Meanwhile, built-in overload protection mechanisms will trigger power cut or force limitation once exceeding the designed strength threshold to prevent equipment damage and personal injury. Reasonable matching of exoskeleton strength with actual working loads not only prolongs service life but also maximizes work efficiency while fully protecting users’ physical safety in industrial, rescue and medical rehabilitation scenarios.