This article is focused on studying the preparation and conduct of the referendum of «the Constitution for Europe» in France. Particular attention is paid to analysis of the evolution of the attitude of the French electorate toward the idea of a “referendum” and a “Constitution for Europe” from the moment the president’s announcement about his intention to hold a referendum, and its results that led to the rejection of «the Constitution». Besides, the internal factors that contributed to the negative outcome of the referendum are discussed.