Introduction: In the 43rd year of Jiajing in Ming Dynasty, the auspicious meaning of "stability and tranquility" was adopted in the southwest of Beijing, and you 'anmen was built to protect the health of the city. In the early days of the People's Republic of China, Mayor Peng Zhen inspected You 'anmen and planned to build the Beijing Second Infectious Disease Hospital, which was the first in Asia in terms of building scale and discipline setting. 1989 changed its name to Beijing You 'an Hospital. In 2003, he became a member of Beijing You 'an Hospital affiliated to Capital Medical University, a member of the Ninth Clinical Medical College of Capital Medical University, and the director of infectious diseases department of Capital Medical University. Today's You 'an Hospital is a large-scale comprehensive medical center with infection, infectious diseases, acute and chronic related diseases as the main service targets and key disciplines, and integrating prevention, medical treatment, health care and rehabilitation. Constructing an international high-tech platform for clinical and translational medicine.