The author once served as Deputy Director of the Central Guard Bureau and the Head of the Central Guard Regiment, in charge of Deng Xiaoping's security work.He narrated his own experience by Deng Xiaoping's side for 20 years, and truthfully described and reflected the image of Deng Xiaoping in the mind of a security guard, including his theory, work style, living habits, personality behaviors, interests and hobbies, etc.It tells about some major historical events and classic moments that Deng Xiaoping has engaged in or made decisions, such as visiting the United States in 1979, meeting with Mrs. Thatcher in 1982, the military parade at the 35th anniversary of the 1984 National Day, and the southern tour in 1992.