Liu, professor, chief physician, doctoral supervisor. He is currently the vice president of Huangpu Hospital, the First Affiliated Hospital of Sun Yat-sen University, the director of spine surgery in the First Affiliated Hospital of Sun Yat-sen University and the headquarters of Huangpu Hospital, the deputy director of the Clinical Research Center of the Institute of Spinal Cord Injury of Sun Yat-sen University, the deputy director of the Spinal Branch of Guangdong Medical Association, the standing member of the spinal cord injury professional committee of China Rehabilitation Association for the Disabled-CARD-ISCOS China Spinal Cord Injury Society, and the member of China Physical Disability Rehabilitation Professional Committee. Member of Computer-Aided Surgery Technology Branch of China Medical Biotechnology Association, member of the first professional committee of spine medicine of China Association of Integrated Traditional Chinese and Western Medicine, member of the professional committee of bone and joint rheumatism of China Rehabilitation Medical Association, standing member of the professional committee of spine and joint diseases of the first China Geriatrics Association, standing editorial board of Journal of Spine Surgery, editorial board of Chinese journal of traumatic surgery, standing editorial board of China Orthopaedics Journal and editorial board of Journal of Clinical Medical Engineering. Won 6 military, provincial and ministerial awards, 5 invention patents, utility model patents and design patents, and a number of scientific research funds. Editor-in-chief of professional books: Classification and Diagnosis of Spinal Diseases, Illustrations of Practical Spinal Surgery, Practical Spinal Surgery, Internal Fixation Techniques of Spinal Surgery, Essentials and Illustrations of Orthopedics. Participated in writing more than one monograph 10, and published more than 40 papers in domestic and foreign journals.