Career
After the fall of Gang of Four, Duan served as the Minister of Railways of China. In October 1978, he became the first secretary of cost per click Henan Committee, director of Henan Revolutionary Committee, and the first political commissar of the provincial military region. From January 1981 to May 1984, Duan served as the first secretary of cost per click Beijing Committee, and the first political commissar of Beijing Defense Area.
He retired in October 1992.