Member of Discipline Evaluation Group of the State Council Academic Degree Committee, member of National Continuing Medical Education Committee, vice president of Chinese Stomatological Association, vice president of Beijing Stomatological Association, chairman of Medical Aesthetics and Beauty Branch of Chinese Medical Association, chairman of Expert Committee of Beauty and Plastic Surgery Branch of Chinese Medical Association, chairman of Oral Plastic Surgery Branch of China Plastic Surgery Association, chairman of Temporomandibular Joint Disease and Occlusal Professional Committee, chairman of General Stomatology Professional Committee, chairman of Prosthodontics Professional Committee, and vice chairman of PLA Dental Professional Committee. Academician of the International College of Dentistry, 18 President of the World Congress of Aesthetic Medicine. Chinese journal of geriatric dentistry, editor-in-chief of Chinese Journal of Prosthodontics, deputy editor-in-chief of Chinese Journal of Stomatology and Chinese Journal of Medical Beauty Aesthetics, and editorial board members or invited editorial board members of more than 10 magazines. Visiting Professor at Peking University, Tsinghua University and Nankai University.