Abstract: Libya became independent in 1951 on the basis of a decision of the United Nations General Assembly of 1949. A federal government and governments were formed in three provinces (Tripoli, Barga, Fezzan). Each province had its own independence and its basic constitutional law, which essentially did not differ from the laws that applied to other provinces. Subsequently, in order to achieve a comprehensive unity in Libya, constitutional amendments were made, and the most important amendments included the change of the federal system and the replacement of the single state system.