The Constitutional Court's jurisdiction is defined in Article 111 Clause 1 of the constitution and includes the following: adjudication on (1)
constitutionality of statutes, (2)
impeachment, (3)
dissolution of a political party, (4) jurisdictional dispute, and (5)
constitutional complaint. While the Constitutional Court's organizational structure was influenced by
Austria, the scope of its jurisdiction follows the
German model.
Judicial review of statutes According to Article 111 Clause 1 Provision 1 of the constitution, the Constitutional Court may review the constitutionality of statutes at the request of ordinary courtsa power referred to as
judicial review () or officially
Adjudication on the constitutionality of statutes () in Article 4 Clause 1 of the Constitutional Court Act. In a legal dispute, if the court's decision depends on the constitutionality of laws relevant to the case, either party may request the court to refer the matter to the Constitutional Court for review. However, the court has discretion on whether to grant the request. If the court decides not to refer the matter, the aggrieved party can file a "constitutional complaint" directly with the Constitutional Court and bypass the ordinary court. The procedural hurdles involved in requesting
adjudication on the constitutionality of statutes imply that only parties directly involved in an ongoing legal case are eligible to request a referral from the court. This means that a person who may suffer abstract or potential injuries is not eligible for this legal resource. In other words, a party must have a concrete and specific interest in the outcome of the case to request a referral to the Constitutional Court. Article 41 Clause 5 of the Constitutional Court Act establishes that once an ordinary court has requested the Constitutional Court to adjudicate on the constitutionality of statutes, no superior court, including the
Supreme Court, may intervene. This restriction on the powers of the Supreme Court stems from its historical passivity in confronting other branches of government during periods of authoritarian rule. The procedural requirement that an ordinary court must refer the case for Constitutional Court review was abused by President
Park Chung Hee under the
Yushin Constitution. He refused to re-appoint Supreme Court justices who challenged his authority, effectively preventing the ordinary courts from making any formal requests for constitutional review. This event laid bare the vulnerabilities of making constitutional review contingent upon a court's request. (2017Hun-Ba127) in 2019 is one of the landmark decisions on constitutional complaints under Article 68(2) of the Constitutional Court Act As a result, the 1987 tenth constitutional amendment introduced another avenue for an interested party to bypass the ordinary courts and directly ask the Constitutional Court to intervene in constitutional review. This alternative route, called constitutional complaint (), is defined in Article 68 Clause 2 of the Constitutional Court Act.
Impeachment (Case No. 2016Hun-Na1) in 2017 is one of the landmark decisions on impeachment. , with Yoon in attendance (on the right) as the defendant, January 21, 2025.
Impeachment adjudication () is another prominent power of the Constitutional Court. According to Article 65 Clause 1 of the constitution, if the president, prime minister, or other state council members violate the constitution or other laws of official duty, the
National Assembly can propose an impeachment motion with the concurrence of at least one-third of the National Assembly members, or in the case of the president, of at least a majority. For passage, the motion must receive the support of a two-thirds majority if it concerns the president and a simple majority for any other office. Once the impeachment motion passes the National Assembly, the Constitutional Court adjudicates the impeachment, and until the Constitutional Court renders a decision, the impeached official is suspended from office and unable to exercise power. Neither the constitution nor the Constitutional Court Act provides concrete criteria to be considered in an impeachment case. Therefore, previous Constitutional Court decisions play an important role in establishing standards of review for impeachment cases. There have been three presidential impeachment cases: the 2004
impeachment of Roh Moo-hyun, the 2017
impeachment of Park Geun-hye, and the 2025
impeachment of Yoon Suk Yeol. In President Roh's impeachment case, the court decided that a grave () violation of the law is required to remove a president from office. However, in the case of President Park Geun-hye, the Constitutional Court held that a violation of the constitution is sufficient for removal, even without a grave violation of the law or statutes.
Notable Presidential Impeachment Cases Article 65 of the 1987 Constitution authorizes the National Assembly to impeach the president, prime minister, and other senior officials for violations of the Constitution or statutory law in the performance of official duties. Once a motion passes, the official is suspended from duty, and the Constitutional Court of Korea determines whether the violation constitutes a
grave breach warranting removal. Through these cases, the Court has clarified the constitutional limits of executive power and reinforced the rule of law in Korea’s democracy.
Impeachment of President Roh Moo-hyun (2004) On 12 March 2004, the National Assembly passed an impeachment motion with 193 votes in favor, citing alleged violations of political neutrality during a legislative campaign, mismanagement of economic policy, and irregular personnel appointments. Following the vote, Prime Minister Goh Kun assumed the duties of acting president while the Court organized hearings.
Impeachment of President Park Geun-hye (2017) On 9 December 2016, the National Assembly voted 234–56 to impeach President Park Geun-hye after evidence revealed that her confidant Choi Soon-sil had influenced official decisions and solicited corporate donations. The Constitutional Court accepted the case (2016Hun-Na1), suspended Park from office, and conducted televised hearings over 92 days. On 10 March 2017, the Court unanimously
upheld the impeachment (8–0), permanently removing Park from office. Kim (2018) highlights the Court’s procedural transparency—public hearings, reasoned opinion, and publication of evidence summaries—as key to legitimacy, while Kimura (2020) notes that the case illustrated how mass protest and judicial review can coexist within constitutional bounds. Following the decision, governance indicators recorded higher public confidence in judicial institutions.
Standards and Later Developments Once the National Assembly files a petition, the Constitutional Court issues notice to the respondent and convenes a nine-justice bench. Suspension from office is automatic to preserve neutrality. The Court may request evidence, call witnesses, and allow amici briefs from legal experts. Together, the three presidential impeachments demonstrate the Constitutional Court’s evolving role in defining executive accountability through law. By interpreting “grave violation” consistently, the Court has maintained constitutional continuity and reinforced democratic resilience. While the provision aims to prevent anti-democratic factions from destabilizing society, it also risks being abused by authoritarian leaders to dissolve political parties that challenge their authority and suppress dissent and free speech. Requiring approval by the Constitutional Court is intended to address such concerns. The Constitutional Court rarely accepts dissolution petitions, and even less often rules in favor of dissolving a political party. Since the Court's establishment in 1987, the
Unified Progressive Party is the only political party dissolved through the provision.
Jurisdictional disputes The constitution empowers the Constitutional Court to adjudicate
jurisdictional disputes (), which is derived from the German
Organs Dispute (''
). In some instances, two separate agencies may have overlapping jurisdictions, which are defined in the relevant statutes that grant those powers. As a result, it may become necessary to distinctly establish the agency responsible for a particular matter. In some other cases, the existence'' of jurisdiction itself can be disputed. For example, the central government in Seoul may delegate certain government projects to local governments. Local governments may attempt to dodge the delegation by petitioning the Constitutional Court, claiming they lack the constitutional jurisdiction to undertake such tasks. The most recent and prominent jurisdictional dispute arose when the National Assembly petitioned the Constitutional Court to determine whether acting president
Choi Sang-mok had the authority to withhold the appointment of Ma Eun-hyuk, a candidate recommended by the Assembly. The court ruled that the president did not have constitutional authority to reject the appointment of judicial nominees recommended by the National Assembly.
Constitutional complaints Article 111 Clause 1 Provision 5 of the constitution, along with Article 68 Clause 1 of the Constitutional Court Act, grants the court the authority to review whether a petitioner's basic rights have been violated by an action or inaction of a public authority. The specification of the constitutional complaints system was influenced by the German equivalent,
Verfassungsbeschwerde. Because
constitutional complaints () are intended to serve as a last resort, they can only be filed after all other existing legal remedies have been exhausted. Civil liability lawsuits are adjudicated by ordinary courts and therefore not subject to constitutional complaints. The court's review is limited to determining whether the petitioner's basic rights have been violated in the adjudication process. Claims for damages and compensation fall outside the court's jurisdiction and are therefore dismissed. According to Article 68 Clause 2 of the Constitutional Court Act, petitioners involved in an ongoing lawsuit can bypass the ordinary court and file a complaint directly with the Constitutional Court, provided that they have sought but were denied a referral for a review of a statute's constitutionality (). Because Clause 2 of the article was historically established to counteract the Park Chung Hee regime's suppression of ordinary courts, curtailing their willingness to grant referrals for constitutional reviews, it does not require that the petitioner exhaust all other legal remediesonly that the ordinary court has denied their request for a referral to the Constitutional Court. == Statistics ==