From 1990 to 1998, He led the team such as LG Cheetahs, Pohang Atoms and Jeonnam Dragons FC as assistant coach.
He was assistant coach of Hiddink's Korea national team with Park Hang-seo in 2002 Korea-Japan World Cup.
In 2003, he debuted as a manager of Bucheon SK (currently Jeju United FC).
With Huh Jung-moo, He led the team to round of 16 in 2010 South Africa World Cup.
When Korea national team faced big problem their situation in 2017, he was picked as a fire fighter (chief assistant coach).