The work deals with the impact of immigration and integration policies on the living conditions of third-country nationals in the country. It is divided into two parts, theoretical and practical. The theoretical part defines related terms and types of migration. Further describes the causes and effects of migration in the economic, social and demographic. This work also introduces the current migration theories. The work also reflects the integration and integration policy of the state to receive and foreigners living in the Czech Republic. The thesis introduces the living conditions of foreigners living in the Czech Republic, with their position in the labor market, with their terms of health and social security. The work is also given view of immigration and immigration policy, Christian social ethics. The practical part of the thesis research by talking to strangers, employees of the state administration and employers who employ foreigners and thus actively contribute to the successful integration of foreigners into Czech society, to verify the facts mentioned in the theoretical part, the search for the causes of these facts, respectively. possible solutions.