This BA diploma focuses on the impact of immigration upon the french political system, it’s development and changes within the system as well as within the international relations. By looking at the development of domestic and foreign policy throughout the modern history, this thesis analyses, wether immigration functions as the primary factor shaping the course of this progress – to what extent can the development of french politics be understood as reaction to the evolution of immigration question from the end of World War 2 until today. The study reflects primary and secondary resources and by analysing these texts (by application on the history) tries to define the most important stages during the migratory development within 20th century and evaluate the impact of the most important circumstances (e.g. algerian crisis, oil shocks, october riots) on the french society.However, the possible future development of imigration politics is also described. Analysis comes to the conclusion that during the second half of 20th century, immigration, mainly on the domestic scene, has gained new level of significance, because of deceleration of french economic progress, distinctive increase in amount of immigrants entering the state and usual fails in integration of these migrants. However, the evaluation of international arena is much more complicated – the thesis tries to prove, on the example of french bilateral relations with Marocco and Algeria, that the impact of immigration can not be separated from all the aspects of international relations.