In my thesis I deal with the question of how the activities of the EURES network helps to create a single labour market in the EU. I focus on the migration and labour mobility, because this is the main factor why the EURES network exists. Furthermore, I describe the activities of EURES and its development including previous SEDOC networks. In the thesis I analyse whether the reform of the EURES is successful and I also analyse activities of EURES advisers based on the results from questionnaire.