- 1975. Andong High School

- 1980. Catholic SangJi Univeristy

- 1981. Korea National Open University and Kyun Hee University, Graduate School

- 1986. Royal Administrative Research Center, UK

- 1997. Public Officer University, UK

- Business Management (Human Resource) related course

- 1980. School Teacher, Hanil High School

- 1985. Secretary, Minister of Ministry of Labor

- 1998. Secretary Officer, Ministry of Labor

- 1999. Examiner, Central Labor Relations Committee

- 2017. Regular Retirement 

- The reason why the Labor Relations Committee exists, co-author, 2017, Korea Certified Public Labor Attorneys Association

- 1983. Dispatched to Joint Committee of Korea-Saudi Arabia

- 1995. Dispatched to Ministry of Human Resource, China

- 1997. Dispatched to Ministry of Labor, USA & Canada

- 2001. Dispatched to Committee of Labor, Japen

- Special Lecture for government officers about Labor related law in Ministry of Labor 

- Special Lecture for Kyungsang Namdo Officers about ‘Our Attitude for Creation of Brand New Korea’

- Special Lecture for the Bureau of Public Information ‘Bran New Labor Relations of Participation and Innovation’

- Special Lecutre for Central Government Officers Education Center of SNU, SKKU, HYU, Naitonal Police University, Catholic Univeristy, HUFS and SKU

- Special Lecture for Local Governments, KEPCO, KT and various associations

- Advising Labor Attorney, Seo Cho gu Doctors’ Association

- Director, Tui Kye Hak Development Association 

- Manager, Sang Rak Group (Group of thousands of high level government officers)

- Member of KFCE, 21st Century Human Values Forum

- Guidance Commissioner, The Trust Guarantee Funds, Small-Mid Business Management Support Group

- Commissioner, Attracting Investment for An Dong City

- Examiner, Certified Labor Attorney Exam and Government Officer Exam, etc

- Advisor, Poonsan, Hanwha Techwin, SPC, Kimyongmo bakery, Maria Hospital, Neocom, Samyong, Cloud 9, Hyundai C&R, NongHyup Songpa, SNU Hospital, Samsung Card, Kyobo Life etc. 

- Mentor Commissioner, KESAD

- Arbitrator, Seoul Central District Court

- Audit Advisor, National Research Roundation of Korea