Cambodia is a constitutional monarchy in which a hereditary king serves as the ceremonial head of state and an elected prime minister serves as the head of government. Legislative power is shared by a bicameral parliament made up of the 125-seat National Assembly and the 62-seat Senate. On paper this is a multi-party democracy, but in practice authority has long been concentrated in the ruling Cambodian People's Party (CPP), which has governed without serious electoral challenge for decades and now operates as a dominant-party state.
What Type of Government Does Cambodia Have?
Cambodia's official form of government is a constitutional monarchy operating within a multi-party democratic framework set out in the constitution of 1993. That charter was adopted after United Nations-supervised elections restored a measure of order following years of civil war, the Khmer Rouge genocide, and a decade of Vietnamese occupation. The constitution establishes a clear separation between a symbolic crown, an elected executive, an elected legislature, and an independent judiciary, and it formally guarantees elections, free expression, and the rule of law.
In reality, the country functions far closer to a single-party state. The CPP has held the reins of power continuously since 1985, and competitive multi-party democracy has eroded steadily, especially after 2017. Enforcement of constitutional guarantees is weak, opposition activity is heavily restricted, and the gap between the formal system and the lived political reality is wide. Understanding Cambodia's government therefore means holding two truths at once: a democratic structure on the page, and a concentrated, dynastic exercise of power in practice.
The Monarchy
The King of Cambodia reigns but does not rule. Unlike most hereditary monarchies, the Cambodian throne does not pass automatically from parent to child. Instead, a nine-member Royal Throne Council selects a new monarch from among eligible descendants of past kings, which makes the crown elective within the royal bloodline. This unusual arrangement was designed to keep the institution above ordinary party politics.
The current king, Norodom Sihamoni, took the throne in 2004 after the abdication of his father, the long-reigning Norodom Sihanouk. A former ballet dancer and UNESCO ambassador who is celibate and has no heirs, Sihamoni serves as a unifying national symbol with little direct political power. His formal duties include signing laws, appointing the prime minister on the recommendation of the National Assembly, and serving as the symbolic guarantor of national unity and continuity.
The Executive
Executive authority rests with the prime minister, who heads the Council of Ministers and runs the day-to-day business of government. The prime minister is nominated by the majority party in the National Assembly, appointed by the king, and confirmed by a vote of the Assembly. The Council of Ministers, composed of ministers who lead the various government departments, sets policy, drafts the budget, and implements legislation.
For 38 years the office of prime minister was held by Hun Sen, one of the world's longest-serving leaders, until he handed the position to his eldest son, Hun Manet, in August 2023. Hun Manet, a West Point graduate and former army commander, inherited not only the premiership but a tightly woven network of party and family control. The transition kept power firmly within the same political dynasty and party, and Hun Sen has remained influential as president of the Senate and head of the CPP, underscoring how concentrated Cambodian governance has become.
Parliament: The National Assembly and Senate
Cambodia has a bicameral legislature. The lower house, the National Assembly, has 125 seats filled by direct election through proportional representation, with members serving five-year terms. It is the principal lawmaking body, responsible for passing legislation, approving the national budget, ratifying treaties, and confirming the government and its program.
The upper house, the Senate, has 62 members serving six-year terms. Most senators are chosen indirectly by commune councilors and National Assembly members, while a small number are appointed by the king and by the president of the National Assembly. The Senate reviews legislation passed by the Assembly and can propose amendments, but its powers are more limited than those of the lower house, and the Assembly can ultimately override Senate objections. The Senate president also serves as acting head of state when the king is abroad or incapacitated. To learn more about the country's geography, history, and culture, see our Cambodia country guide.
The Judiciary
At the top of Cambodia's court system sits the Supreme Court, the final court of appeal. A separate Constitutional Council is charged with reviewing the constitutionality of laws and resolving electoral disputes, while the Supreme Council of the Magistracy is meant to safeguard judicial independence and discipline judges. Below these are courts of appeal and the provincial and municipal courts that handle most civil and criminal cases at first instance.
Judicial independence, however, remains a serious concern. Courts are widely seen as susceptible to political influence, and high-profile cases involving opposition figures, journalists, and activists have frequently produced outcomes aligned with the governing party's interests. Strengthening the autonomy of the courts and the impartial application of the law is among the most commonly cited reform priorities for the country, both by domestic critics and international observers.
Administrative Divisions and Local Government
Below the national government, Cambodia is divided into 25 provinces, including the capital, Phnom Penh, which has the status of a municipality. Provinces are further subdivided into districts, then into communes (called sangkat in urban areas), and finally into villages, the smallest administrative unit. Provincial governors are appointed by the central government, which keeps a strong centralizing grip on regional administration.
Commune councils, by contrast, are directly elected and form the most local layer of representative government. These commune elections are significant because they not only manage local affairs but also help select members of the Senate. Control of the commune councils, overwhelmingly held by the CPP, is therefore a foundation of the party's broader national dominance.
Recent Political History
Cambodia's governance cannot be understood apart from its turbulent twentieth century. The country gained independence from France in 1953, endured the catastrophic Khmer Rouge regime from 1975 to 1979, and then spent a decade under Vietnamese-backed administration. The 1991 Paris Peace Agreements and the 1993 UN-organized elections produced the current constitutional order and the return of the monarchy.
A pivotal moment came in 2017, when the Supreme Court dissolved the main opposition Cambodia National Rescue Party, effectively removing the only serious challenger to the CPP. In the 2018 and 2023 national elections the ruling party won nearly every seat, and international observers questioned how competitive those contests truly were. The dynastic handover from Hun Sen to Hun Manet in 2023 confirmed the durability of the system and signaled a generational transfer of power within the established elite.
Key Facts
- Government type: Constitutional monarchy under a multi-party framework (dominant-party state in practice)
- Head of state: King Norodom Sihamoni (since 2004), selected by the Royal Throne Council
- Head of government: Prime Minister Hun Manet (since 2023)
- Legislature: Bicameral parliament: 125-seat National Assembly and 62-seat Senate
- Constitution: Adopted in 1993 after UN-supervised elections
- Capital: Phnom Penh
- Ruling party: Cambodian People's Party (CPP), in power since 1985
Frequently Asked Questions
Is Cambodia a democracy or a monarchy?
It is both in name: a constitutional monarchy with democratic institutions. The king is a ceremonial head of state, while elected officials govern through parliament. In practice, though, single-party dominance by the CPP means genuine electoral competition is very limited, and many observers describe Cambodia as a dominant-party or authoritarian-leaning state.
Who is the head of government in Cambodia?
The prime minister is the head of government. Since August 2023 that position has been held by Hun Manet, who succeeded his father, Hun Sen, after the latter's 38 years in office. The king remains the head of state but holds only ceremonial power.
What is Cambodia's legislature called?
Cambodia has a bicameral parliament consisting of the 125-seat National Assembly (the lower house, directly elected by proportional representation) and the 62-seat Senate (the upper house, mostly chosen indirectly by commune councilors and Assembly members).
What is the capital of Cambodia?
The capital is Phnom Penh, which serves as the seat of the monarchy, the national government, and the parliament, as well as the country's largest city and economic center.
