This bionic orthopedic brace for pet limbs adopts carbon fiber composite shell with multi-axis mechanical hinge bionic limb structure. It is suitable for severe limb injury, joint deformity, nerve paralysis, amputation assistance, severe patellar dislocation and postoperative limb function reconstruction of dogs. It is a high-performance medical-grade orthopedic rehabilitation assistive device, realizing limb support, angle control and weight-bearing compensation.