This article deals with the impact of European Union, more precisely its politics, on the national political practise. It focuses on contemporary debate about the europeanisation with concrete demonstration on the party system in France. It attempts to describe to what extent the political debate on national level is influenced by European issues while analysing the behaviour of French political parties. In the first part author explains scholars bases over the debate concerning European integration, the second one focuses on analysing different French parties views on it.