After retiring as a badminton player, he decided to become a coach, starting his career with South Korea national team.

Park played badminton at the 2004 Summer Olympics in men's singles, defeating Abhinn Shyam Gupta of India and Bao Chunlai of China[1] in the first two rounds.

In the quarterfinals, Park was defeated by Soni Dwi Kuncoro of Indonesia 15-13, 15-4.

Park started his career as a badminton coach at the South Korea national team, and served his country for five years, from 2013 to 2018.

[2] Park joined the India national team in 2019 until 2023 where he coached P. V. Sindhu and helped her to win an Olympic bronze medal in 2020 Tokyo Olympic Games,[3][4] and then the gold medal in 2022 Birmingham Commonwealth Games.