Celebrating the 100th anniversary of its inauguration in 2023, the Grand National Assembly of Türkiye (GNAT) was opened to make the national will prevail on the basis of "Sovereignty unconditionally belongs to the Nation ". According to the 1982 Constitution, legislative power is inalienably vested in the GNAT. The Grand National Assembly, unlike its counterparts in other countries, is not only a legislative assembly, but also the main actor that led the National Struggle in the War of Independence, enabling the establishment of a new state from the remnants of the Ottoman Empire.

April 23, 1920, the date on which the Grand National Assembly of Türkiye was founded, is one of the most important dates in the thousand-year history of the Turkish nation. The Grand National Assembly of Türkiye, the first institution in which the power and will of the people participate in the administration and thus democracy is realized, is the highest institution in which the entire existence of the nation is represented.

The Constitution of the Republic of Türkiye consists of 7 parts. In the first part titled “Legislation” of the third Section titled “Main Organs of the Republic”, Articles between 75 to 100 are related to the GNAT.

Members of Parliament are elected for a five-year term. The period between two elections is called the legislative period. The legislative period consists of legislative years. Each legislative year begins on October 1 and ends on September 30. Parliament has had 27 legislative terms between 1920 and 2018.

With the constitutional referendum in 2017, the number of deputies was increased from 550 to 600, and the first general election of the new Parliament was held on 24 April 2018 under the presidential system.

Discussions cannot be started in the General Assembly before a certain number of deputies attend the meeting. The quorum for the meeting required to start the negotiations is 200, which is 1/3 of the total number of members of the Parliament.

The right to introduce bills belongs to the deputies. Bills might be introduced with one or more than one deputy's signature.