This film provides an in-depth coverage on the meritorious deeds of Professor Zhang Xize, a well-known expert in oral and facial surgery in China, who was the then director of the Shanghai Institute of Stomatology and the director of the Department of Oral and Facial Surgery of the Ninth People's Hospital of the Second Medical College. It introduced the continuous development of oral and facial surgery, education and scientific research led by him, and listed many medical research results. In the film, we can find a scene where he personally reviewed the graduate research plan.