Proficient in diagnosis and treatment of gastrointestinal endoscopy for gastrointestinal early carcinomas, ESD,  EUS, LECS, NOTES. Director of Department of Gastrointestinal Endoscopy, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Associate Professor of Fujian Medical University, The Vice Chairman of Committee of Society of Tumor Endoscopy, Chinese Anti-Cancer Association,  The Chairman of Committee of Society of Tumor Endoscopy, Fujian Anti-Cancer Association, The Director of ESD training center, Chinese Medical Doctor Association, The standing committee of Society of Fujian Gastrointestinal Endoscopy, Member of the editor board of 《Journal of Minimally Invasive Medicine, World Journal of Gastrointestinal Endoscopy. Member of ACG and ESGE. Peer reviewer of《World Journal of Gastroenterology》, 《Chinese Journal of Clinicians》.