The current National Assembly, formed following elections held on 26 March 2006, has a total of 55 members elected in 7 multi-member constituencies using the party-list proportional representation system. Members serve four-year terms.
| Political Party | Election Year | |||||||
|---|---|---|---|---|---|---|---|---|
| 1991 | 1994 | 1998 | 2002 | |||||
| Movement for the Liberation of São Tomé and Príncipe-Social Democratic Party (MLSTP-PSD) | 21 | 27 | 31 | 24 | ||||
| Force for Change Democratic Movement-Liberal Party (MDFM-PL) | - | - | - | 23 | ||||
| Democratic Convergence Party-Reflection Group (PCD-GR) | 33 | 14 | - | |||||
| Independent Democratic Action (ADI) | - | 14 | 16 | * | ||||
| Opposition Democratic Coalition (CODO) | 01 | - | - | - | ||||
| Uê Kédadji (UK) | - | - | - | 08 | ||||
| Total | 55 | 55 | 55 | 55 | ||||
* The Independent Democratic Action (ADI) party was a member of the Uê Kédadji coalition in the 2002 election.
| Presidents of the Constituent Assembly (1975) | |
|---|---|
| Term | Incumbent |
| 1975 | Nuno Xavier Daniel Dias |
| 1975 | Guilherme do Sacramento Neto |
| Presidents of the National Assembly (1975-present) | |
| Term | Incumbent |
| 1975 – 1980 | Leonel Mário d'Alva |
| 1980 – 1991 | Alda Neves da Graça do Espírito Santo |
| 1991 – 1994 | Leonel Mário d'Alva |
| 1994 – 2002 | Francisco Fortunato Pires |
| 2002 – 2006 | Dionísio Tomé Dias |
| 2006 – present | Francisco da Silva |