On April 10, 2019, at the 4th Plenary Meeting of the 7th Central Committee of the Workers' Party of Korea, he was elected as a candidate member of the Party Central Committee and was appointed as the commander of the Supreme Guard Command, succeeding Yun Jong-rin.
In August 2020, he attended the 6th Plenary Session of the 7th Central Committee of the Workers' Party of Korea.
In October 2020, he led the Supreme guard command column and attended the military parade marking the 75th anniversary of the founding of the party.
He appeared at the military parade on April 25, 2022, leading the Supreme Guard Command column.
He appeared leading the Supreme Guard Command column at the military parade marking the anniversary of the Day of Victory in the Great Fatherland Liberation War July 27, 2023.