Adolescent idiopathic scoliosis is a common spinal deformity among teenagers, which causes serious harm to their physical and mental health. At present, although surgery provides a treatment plan for severe idiopathic scoliosis, it has complicated operation, high surgical risk, and some irreversible injuries to the body of teenagers; For mild and moderate adolescent idiopathic scoliosis, orthotics is still the preferred method. In this paper, the biomechanical mechanism of orthopedic devices, classification of common orthopedic devices and research progress of the latest 3D printed orthopedic devices are described, so as to provide reference for clinical transformation.