He served as delegate to the 12th convocation of the Supreme People's Assembly.

He graduated from Kim Il-Sung Military University, and in April 1992, became the rank of general of the Korean People's Army.

During the first inter-Korean defense ministers' meeting in September 2000, he served as Deputy Chairman of the North Korean delegation, and in April 2002, the rank of the People's Army was granted.

[1] In September 2010, he was elected to the Central Committee of the Workers' Party of Korea.

After leaving North Korea in April 2015, they filed for asylum with the South Korean Embassy in Moscow.