I graduated from Peking University and obtained my PhD degree in the field of cancer epidemiology from The Chinese University of Hong Kong. In 2010, I got a research visit training at Harvard School of Public Health, where I concentrated my research on cancer epidemiology. My research focuses on cancer prevention and clinical epidemiology. I participated in a project on dietary risk of esophageal cancer in a high risk area. In this project, I figured out the hazard dietary factors for esophageal cancer in the high risk area. During my post-doctoral period, I joined in the Linxian Nutrition Intervention project at Cancer Hospital, Chinese Academy of Medical Sciences. Presently, I get a research position at Beijing Shijitan Hospital, Capital Medical University, and concentrate on clinical epidemiology, exploring the prognostic effects of clinical biomarker on esophageal cancer and breast cancer patients. Under the grant support, my research focus is on the immune check-point molecules in tumor microenvironment and the related mechanisms and clinical significance.