He served as the commander of Pyongyang Defense Command In November 1970 he was appointed an alternate member of the 5th Central Committee and elected to full member of the 6th Central Committee in October 1980, following the 6th Congress of the Workers' Party of Korea.

In November that year he was appointed commander of the 820th Tank Division and was also elected to the 8th convocation.

In March 1995 he was appointed a member of the 6th Central Military Commission.

[1] He was member of the funeral committee of Choe Hyon[2] and Pak Song-chol.

[3] In April 1982 he was awarded Order of Kim Il Sung.