Director of the Department of Radiation Oncology at Peking University Cancer Hospital, Chief Physician and Professor. He specializes in precision radiotherapy for digestive system tumors such as rectal cancer. He has devoted more than 20 years to research on the treatment of primary and metastatic liver cancer, achieving a series of groundbreaking outcomes that have significantly improved patient survival rates. He is the chief editor of monographs including Chinese Guidelines for Radiotherapy of Primary Hepatocellular Carcinoma and Radiation Oncology of Abdominal Tumors, and has published over one hundred papers. He has been honored with national titles such as "People's Renowned Doctor".

Precision radiotherapy for digestive system tumors such as rectal cancer, with over 20 years of dedicated research in the treatment of primary and metastatic liver cancer, has yielded a series of groundbreaking results, significantly improving patient survival rates.