Prior to being Minister of Posts and Telecommunications he worked as director of the Pyongyang People's Committee Telephone Bureau, Taecheon Power Plant Director, Pyongyang Telephone Office Director, and Chesinseong Gaecheon City Post Office. In 2015, he was appointed as the Minister of Posts and replaced Sim Chol-ho. In May 2016, the 7th Congress of the Workers' Party of Korea was elected as a candidate for the Central Committee of the Workers' Party of Korea.