The occurrence of spinal cord injury complications not only affects the effectiveness and process of rehabilitation, but also seriously affects the quality of life of patients and even threatens their lives. Several common complications of spinal cord injury include pressure sores, urinary complications, respiratory complications, deep vein thrombosis and pulmonary embolism, spasticity, pain, vegetative hyperreflexia, and osteoporosis. Knowledge of the prevention and treatment of these complications not only helps to improve the health status of the patient, but is also a prerequisite for rehabilitation.