Objective To study repairing effect of Lugua polypeptide on patients with spinal cord injury and the related mechanism. Methods From August 2012 to August 2013,79 cases patients with thoracolumbar spinal cord injury as the research objects,and they were divided into two groups randomly.The control group (n=38)received conventional treatment,and the observation group (n=41)received intravenous drip of Lugua polypeptide on the basis of conventional treatment.The course is three months.The American spinal injury association(ASIA)sensory score,ASIA motor score and Bathel index (BI )were recorded in two groups before and after treatment.Analyse the repairing effect on patients with spinal cord injury. Results ASIA sensory score,ASIA motor score and Bathel index in two groups after treatment improved ,and the observation group improved significantly compared with control group(P<0.05).Conclusion Lugua polypeptide can improve sensory and motor function with spinal cord injury ,it has clinical value.