The Cuban constitutional history synthesizes the struggles of the Cuban people for their independence and sovereignty, the creative thinking of their women and men in pursuit of the construction of a better country and the genuine values ​​of a nation that aspires to be perfected every day.

The 1976 Constitution was considered in the First Congress of the Party, and as a result of the proposals the preamble and 60 of the 131 articles of the document were modified. On February 15, 1976, men and women of the town, over the age of 16, went to the polls to exercise their free and secret vote. 96 percent of the population of electoral age approved the Constitution. On February 24, 1976, this Constitution was established during a solemn and public ceremony. The 1976 Constitution has been partially reformed 3 times.

The second amendment to the Constitution approved in 1976 was developed in 1992. On this occasion, the reform clause was not modified. These changes were not submitted to popular referendum, the National Assembly of People's Power carried out the whole matter. A significant element of this process was to maintain the forecast of flexibility and constitutional rigidity depending on the content that would be subject to reform.
 
The last modification to the constitutional text occurred in 2002. In the popular plebiscite process, more than 8 million Cubans signed to ratify the socialist content of this Constitution, and expressly left the irrevocable character of socialism and the political and social system revolutionary. On June 26, 2002, the National Assembly unanimously adopted the agreement that approved the Constitutional Reform Law.
 
In 2018, a new draft Constitutional Reform was created, which is a historical continuity, inspired by the same socialist ideals proclaimed in 1976, consistent with the new economic and social realities of the country. Its purpose is to guarantee full national sovereignty , the economic development and well-being of the Cubans.