It is composed of nine Constitutional Court justices (Korean: 헌법재판소 재판관; Hanja: 憲法裁判所 裁判官; RR: Heonbeopjaepanso Jaepangwan).

However, following Article 111 Clause 3 of the constitution, three of the Constitutional Court justices should be appointed from candidates selected by the National Assembly, and another three should be appointed from candidates nominated by the Supreme Court chief justice.

Thus, only three of nine Constitutional Court justices are directly appointed by the president of South Korea.

All but two justices retired without renewing the term, citing the potential harm to judicial independence and outsize influence of the president of South Korea on the Constitutional Court.

[4] Since South Korea adopted American styled 3-year law school system for legal education in 2008, 'education' column of below table means where former Justices received undergraduate degrees.