The morbidity of spinal cord injury (SCI) is increasing year by year significantly in China. The methods to treat SCI patients in sequela stage update are poor. Though traditional rehabilitation therapy is the routine method to treat SCI in sequela stage, aiming to improve the neurological disorders of these patients, such as sensory disturbance, dyskinesia, autologous adjustment of blood pressure, dysfunction of urination, defecation and perspiration , etc. What's a pity, the efficacy of the rehabilitation therapy is unsatisfactory. Rehabilitation Therapy can prevent the process of muscle atrophy and joint stiffness. However, it can not repair the damaged nerve function. Studies show that mesenchymal stem cell transplantation can remarkably improve the neurological function of SCI in animals without any severe side effect.