President Koh graduated from Public Administration at Yeonsei University and obtained a Master's and a Doctorate Degree in the Graduate School of Public Administration at the same university. After taking positions such as Chief Manager in the public administration department, Dean in the Law school, President in the Graduate School of Public Administration in Jeju National University, and chairman of Jeju Development Institute, he has been in tenure as the 1st president of Jeju International University, followed by a career as the 7th President of Jeju National University.