Inclusion Criteria:  Age 18~70 Spinal cord injury staging(AIS) A,B,C or D Level of lesion is T10 and above Distance between lesion and conus >60mm Injured Time > 3 months Capable of participating rehabilitation program Agree to comply with all conditions of the study and to attend all required study training and visits  Exclusion Criteria:  With Obvious psychiatric disorder that cannot complete relevant questionaires Cognitive impairment Severe autonomic reflex disorder Severe muscle atrophy and joint contracture Cannot participate in spinal cord stimulation surgery or follow-up visits Life expectancy less than 12 months Abnormal blood or other physiological examinations that cannot conduct surgery, such as blood coagulation disorder or kidney/liver abnormalities Uncontrollable hypertension, heart diseases, respiratory diseases or took related medicine in last 3 months Unsuitable candidates in PI's perspective