In 1991 he was appointed to the Commander of the 3rd Corps of the Korean People's Army In June 2000 he was appointed Ministry of People's Armed Forces Railroad Forces Commander.
In July 2003 he attended the dinner at the Syrian Embassy in North Korea to commemorate the 37th anniversary of the establishment of diplomatic relations between Syria and North Korea.
In July 2003 he was appointed as director of the Ministry of People's Armed Forces.
In November 2004 he gave a speech at the ASEAN Regional Security Policy Conference in Beijing.
In February 2007 On the Defender of the Fatherland Day, he attended a banquet hosted by the Russian embassy in North Korea.