Prof. Lei LIU was born in Henan, China in 1973 and spent his teenage years there. In 1990, he had been Chengdu and was registered as a student for Medical Bachelor in West China University of Medical Sciences. He graduated with a Medical Bachelor's degree in June, 1995. In the same year he was accepted as a graduate student for M.D. and resident surgeon supervised by Prof. Shengwei Li and Hanzhang Wang, in Department of Oral & Maxillofacial Surgery, School of Stomatology, West China University of Medical Sciences. He graduated in June 2000 and received his Medical Doctor. Then, he had worked as an attending staff of Division of Traumatic & Plastic Surgery, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University and a lecturer of Department of Oral & Maxillofacial Surgery, West China College of Stomatology, Sichuan University from July 2000 to June 2002. In July 2002, he was promoted as an associate professor (Clinic) of Division of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University and an associate professor (Research) of Department of Oral & Maxillofacial Surgery, West China College of Stomatology, Sichuan University. In May 2003, he got a position as an advisor of postgraduate student for Medical Master, Graduate Faculty, Sichuan University. From 2008, he has worked as Professor (Clinic) of Division of Traumatic & Plastic Surgery, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Professor (Research), Department of Oral & Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Professor (Research), State Key Laboratory of Oral Diseases, Sichuan University, Advisor of postgraduate students for PhD and MD, Graduate Faculty, Sichuan University. Now, the current membership of Prof. Lei Liu includes Vice-Chairman, Academic Group of Alveolar Surgery, Chinese Society of Oral and Maxillofacial Surgery; Vice-Chairman, Academic Committee of Stomatology, Chongqing Association of the Integration of Traditional and Western Medicine; Fellowship, International College of Dentistry; Faculty of AO/ASIF, Cranio-maxillofacial Surgery Education; Committee Member, Academic Group of Maxillofacial Trauma, Chinese Society of Oral and Maxillofacial Surgery; Committee Member, Sichuan Province Expert Committee for Examination of Aesthetic Surgeon License; Editorial Board Member of 10 journals; Reviewer of 18 journals. Until now, Prof. Liu has already take charge of 14 research projects as program director. He has already published 228 papers (106 papers as first author or corresponding author) and 14 book chapters.