The author of this article makes an attempt to present legal regulations relating to the legal scope of the constitutional principle of the autonomy of parliament. This principle is indicated in Article 112 of the Constitution of the Republic of Poland. It means that chambers of parliament can independently determine their internal organization and mode of work as well as detailed matters related to their functioning. But the scope of the principle of the autonomy of the parliament is determined also by other provisions of the Constitution, as well as the provisions of the laws and the Standing Orders of the Sejm of the Republic of Poland. The article also deals with the question whether this principle affects constitutional review of acts of chambers of parliament.