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House of Representatives (Thailand)

House of Representatives
Sapha Phu Thaen Ratsadon
File:Seal of the National Assembly of Thailand.png
Prayuth Chan-ocha (Military)
since 22 May 2014
Seats 500 MPs
Political groups
Last election
2 February 2014
Next election
Meeting place
File:Thai Parliament House.JPG
Parliament House of Thailand
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The House of Representatives (Thai: สภาผู้แทนราษฎร; rtgsSapha Phu Thaen Ratsadon) is the lower house of the National Assembly of Thailand, the legislative branch of the Thai government. The system of government of Thailand is that of a constitutional monarchy and a parliamentary democracy. The system of the Thai legislative branch was modeled after the Westminster system. The House of Representatives has 500 members: 375 members are democratically elected through single constituency elections, while the other 125 are appointed accordingly through party-list proportional representation. The roles and powers of the House of Representatives have been enshrined in the Constitution of 2007.


The House of Representatives was established after the Revolution of 1932, when the Khana Ratsadon (the "People’s Party"), overthrew the absolute monarchy and replaced it with the present system of constitutional monarchy. When King Prajadhipok signed the temporary constitution of 1932, he established the first legislative assembly in Thailand, It was an entirely royally-appointed chamber. The first session of the People’s Assembly was held on June 28, 1932, in the Ananda Samakhom Throne Hall. From then on, the House existed in various forms until the present form in 2007:

See more at: Constitutions of Thailand

  • 1946- The 1946 constitution established a fully elected House of Representatives.
  • 1952- Establishment of the unicameral National Assembly with 123 members.
  • 1959- The House was banned by Sarit Dhanarajata.
  • 1968- The House was re-established with 219 members.
  • 1972- The House was banned by Thanom Kittikachorn.
  • 1974- Establishment of the House of Representatives.
  • 1976- Establishment of a unicameral National Assembly with 360 royally-appointed members.
  • 1978- Return of an elected House with 301 members.
  • 1991- Establishment of a unicameral National Assembly with 292 appointed members.
  • 1997- Establishment of a 500 member House of Representatives, 400 directly elected with 100 elected through proportional representation.
  • 2006- Following the coup, an interim charter was signed establishing a 250 member National Legislative Assembly.
  • 2007- Present system established, by referendum under the 2007 Constitution of Thailand.


The qualifications to be a candidate for the House of Representatives are outlined in Section 101, Part 2, Chapter 6 of the 2007 Constitution. The candidate must be a citizen of Thailand by birth only. The citizen must be at the age of twenty-five or older on election day and having been born in the province in which he or she intends to stand as a candidate. The candidate must have been a voter and therefore on the electoral register for at least five years directly before the election, and he or she must also have a house or have been in public service in the province for five years. The candidate must also have been a member of an educational institution in that province for at least five consecutive years. Politically, a candidate must be a member of one political party for a period of at least ninety days before election day, except in cases of dissolution where thirty days is the minimum period. This is done to discourage party switching before the election. For party list candidates, they must also meet the same qualifications except for the provincial restrictions. They are instead divided in lists based on provincial groups.

Those specifically barred from being candidates are those: addicted to drugs, declared bankrupt, unable to vote (see voter eligibility below), a former convicted felon (the individual must wait for five years after release to be eligible), removed from public service for being corrupt or incompetent, had assets confiscated due to embezzlement; and finally, the individual must not be a member of the: government or civil service, Senate, local administrations, member of the judiciary or other independent agencies.


For the most recent election, see Thai general election, 2011.

The House of Representatives has 500 members. 375 members are directly elected in single constituency elections by first-past-the-post voting. The 375 constituencies are divided by population according to the census and tambons. The other 125 members are voted based on ‘proportional representation’ it is actually in truth a parallel voting system or more precisely the Mixed Member Majoritarian system (MMM). In Thai general elections, voters have two votes: one to select the member of parliament for their constituencies and the second to choose which party they prefer. Seats are assigned to parties as a result through the d'Hondt method.

In accordance with the 2007 Constitution of Thailand, a general election must be held every 4 years. Dissolution can happen anytime, which is done by the king with the advice of the prime minister through the use of the royal decree. Elections are held under universal suffrage; every voter must be a citizen of Thailand; if not by birth then by being a citizen for 5 years. Must be over 18 years old before the year the election is held. Voting in elections are also mandatory as missing an election will result in political activities right. Those barred from voting in House elections are members of the clergy, those suspended from the privilege for various reasons, detainees under legal or court orders and being of unsound mind or of mental infirmity.

Term and dissolution

The term of the House of Representatives is exactly four years from the previous election day. Upon the expiration of the House, the king will issue a decree calling for a general election of the House, in which the date of the election must be announced; this must be done within forty days of the expiration. The date of the election must be the same for the entire kingdom.

The king holds the royal prerogative to dissolve the House before its expiration. When this happens a royal decree is issued where the election date is announced; this must be done no less than forty days and not more than sixty days from the date of dissolution. The reasons and circumstances of a dissolution can be made only once.


Members of the House of Representatives are generally called Members of Parliament or MPs (Thai: สมาชิกสภาผู้แทนราษฎร or ส.ส.). The membership of the House of Representatives commences on election day. If there is a vacancy in the membership of the House, and it was not due to expiration or dissolution, it must be re-occupied. Vacancies may occur due to: death, resignation, being convicted and being expelled (only by parliamentary party through a 3/4 majority vote). If the vacancy is of a constituency member then an election must be held within forty days of the vacancy, unless less than 180 days of the present term of the House remains, the vacancy can remain.

In the case where the vacancy is made by a proportional representative member, the vacancy will be filled by the Speaker of the House of Representatives by submitting the name of the next candidate in the party list (submitted on election day) to be published in the Royal Gazette. This must be done within seven days. If no name is to be found then the vacancy can remain unfilled. Members of the House who have filled a vacancy under either of these procedures can only remain in the House for the remainder of its present term.

Power and privileges


According to the 2007 Constitution of Thailand, the House of Representatives is granted many powers, most of them are shared with Senate of Thailand. These common powers are:

  • Legislation
  • Scrutiny
  • Passing of annual appropriations bills
  • Constitutional amendments

Exclusive powers:

  • Primary legislative chamber.
  • Creating and appointing committees to examine bills.
  • Power to call ministers to account (by appearing in the chamber and answering questions)
  • Removal of the prime minister through a "vote of no confidence" (more than 1/5 to vote for a debate, and a simple majority for removal).
  • Removal of ministers (more than 1/6 to vote for a debate, and a simple majority for removal).
  • Selection of its officers.
  • Expulsion of members
  • Determination of its own rules and procedures.


No member of the House can be arrested, detained, or summoned by a warrant for an inquiry as the suspect in a criminal case unless permission of the House of which he or she is a member is obtained or he or she is arrested in flagrante delicto.


Presiding officers

The executive committee of House of Representatives consists of one speaker and two deputy speakers to be its presiding officers. The Speaker of the House is also the ex officio President of the National Assembly of Thailand. The election is done by secret ballot in the first session; after a resolution is passed; the elected will be formally approved by the king. The Speaker and Deputy Speakers of the House cannot be members of the cabinet or any political party executive committee. The speaker and his deputies are not entitled to represent partisan interests and must exercise their powers on a non-partisan basis.

Leader of the Governing Coalition

The Constitution stipulates that the Prime Minister and the Ministers must be former members of the House of Representatives. After the first session, the House must vote in a resolution to elect a Prime Minister, after which the King will formally approve him within thirty days. The Prime Minister-elect is always the leader of the largest party in the House. However, under the present electoral system, the House is most likely to result in a hung parliament. Therefore, after the general election of 2007, six parties formed a governing coalition, electing Samak Sundaravej of the largest party, People's Power Party (PPP), the Prime Minister.

On August 5, 2011, the House elected Yingluck Shinawatra as Prime Minister against Abhisit Vejjajiva of the Democrat Party, to a vote of 265 for and 159 against.

Leader of the opposition

After the appointment of the Cabinet, the King appointed the official Leader of the Opposition of Thailand. The Leader of the Opposition must be the leader of the largest party with no members holding any ministerial positions. His party must be larger than 1/5 of the total number of the House. If no Party meets this qualification then the Leader with most votes from parties with no ministerial positions will then be appointed. The Royal appointment must be countersigned by the President of the National Assembly. The Leader of the Opposition leads the Shadow Cabinet of Thailand.

General election results

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.+ e • d Summary of the 3 July 2011 House of Representatives of Thailand Thai general election results
Parties Constituency Proportional TOTAL
Votes % Seats Votes % Seats Seats %
Pheu Thai 12,211,604 44.3 204 15,744,190 48.41 61 265 53.0%
Democrat 8,907,140 32.3 115 11,433,762 35.15 44 159 31.8%
Bhumjaithai 3,123,567 11.3 29 1,281,577 3.94 5 34 6.8%
Chartthaipattana 1,259,595 4.6 15 906,656 2.79 4 19 3.8%
Chart Pattana Puea Pandin 1,098,159 4.0 5 494,894 1.52 2 7 1.4%
Phalang Chon 246,031 0.9 6 178,110 0.55 1 7 1.4%
Rak Thailand 0 998,603 3.07 4 4 0.8%
Matubhum 330,633 1.2 1 251,702 0.77 1 2 0.4%
Rak Santi 122,968 0.4 0 284,132 0.87 1 1 0.2%
Mahachon 0 133,772 0.41 1 1 0.2%
New Democracy 0 125,784 0.39 1 1 0.2%
Other Parties 0 692,322 2.13 0 0 0.0%
Valid Votes 27,537,677 375 32,525,504 125 500 100%
None of the Above 1,419,088 4.03%   958,052 2.72%
Invalid Votes 2,039,694 5.79% 1,726,051 4.90%
Total Turnouts
Total Electors
Source: Election of Members of House of Representatives B.E.2554


#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.+ e • d Composition of the House of Representatives of Thailand, Since July 2011
Parties Leader Previous seats Changes Current seats
Pheu Thai Party Yingluck Shinawatra 189 (+76) 265
Democrat Party Abhisit Vejjajiva 172 (-13) 159
Bhumjaithai Party Chaovarat Chanweerakul 32 (+2) 34
Chartthaipattana Party Chumpol Silpa-archa 25 (-6) 19
Chart Pattana Puea Pandin Party Dr. Wannarat Channukul 9 (-2) 7
Phalang Chon Party Chao Maneewong - (+7) 7
Rak Thailand Party Chuwit Kamolvisit - (+4) 4
Matubhum Party Sonthi Boonyaratglin 3 (-1) 2
Mahachon Party Apirat Sirinawin - (+1) 1
Rak Santi Party Thawil Surachejpong - (+1) 1
New Democracy Party Wimon Saramano - (+1) 1
Total 500
Source: The
‡ Coalition partners


See also


External links