A portable human exoskeleton system (1) includes a pelvis module (10), a leg module (20) and a foot module (30). The pelvis module (10) includes a bendable member (11) and a pelvis module connector (12). The foot module (30) includes a foot module connector (33). The leg module (20) includes: a femur module (21) detachably coupled to the pelvis module connector (12)； a tibia module (22) detachably coupled to the foot module connector (33)； and a knee joint component (23) having at least two linkages with different lengths wherein each linkage is pivotally coupled to the femur module (21) and the tibia module (22). Weight above the hip of the user is exerted on the pelvis module (10), and transferred to the leg module (20) and the foot module (30). The exoskeleton system is easily disassembled and carried, and can be worn inside attire without affecting appearance of the user.
