The main purpose of the study is to analyze the feasibility and necessity of an EU Constitution. Briefly, the history of the draft constitution is as follows: The draft treaty aims to codify the two main treaties of the European Union - the Treaty of Rome of 1957 and the Treaty of Maastricht of 1992, as amended by the Treaty of Amsterdam (1997) and the Treaty of Nice (2001). The debate on the future of Europe is believed to have begun with a speech by German Foreign Minister Joschka Fischer in Berlin in 2000. The process began after the Laeken Declaration, when the European Convention was set up, chaired by former French President Valerie Giscard d'Estaing, with the aim of drafting a constitution. The draft contract was published in July 2003. After lengthy discussions and debates over the proposal for qualified majority voting, the final text was approved in June 2004 and signed by representatives of the Member States on 29 October 2004. The failure of the treaty in France and the Netherlands is a serious blow to the European Union because these two countries are considered to be loyal supporters of the European project. The text of the treaty was subsequently rewritten by the Amato Group, officially the Active Committee on European Democracy (ACED), a group of high-ranking European politicians. During the German presidency of the Union, a new treaty was proposed - the Treaty of Lisbon - to replace the original draft of the Constitution. On 12 June 2008, the Lisbon Treaty was also rejected in a referendum in Ireland. But if we want to look beyond history, we can ask - Why does the EU need a Constitution and how can the Constitution be the roadmap to an advanced future for the EU? The answers to this question can be found by analyzing several directions (these are the main points of the article): historical reflexivity; socio-cultural analysis of the philosophical concepts of well-known political and social philosophers such as Immanuel Kant, John Locke; the modern constellation through the prism of Jürgen Habermas and the decision to make a text as a Constitution which its aim is to reach the starting point of an entire community like the EU. Keywords: constitution, EU, philosophy, law, John Locke, Immanuel Kant, Jurgen Habermas