After the establishment of the People's Republic of China in 1949, Liu worked in the police departments in Beijing, Hubei, Guangzhou, and Anshan. After the Cultural Revolution, he was appointed the police chief of Beijing in July 1977 and later deputy mayor of Beijing.[1]
Liu retired in 1997. He died on 8 June 2018 in Beijing Hospital, at the age of 100.[1][2]