Sweden, like most European countries, never set out to be an immigration country. Since its Government and Parliament have subscribed to the principle of maximum mobility across national frontiers, more than 400,000 foreign citizens and 200,000 former aliens reside in Sweden today. Immigration to Sweden is not completely free, though. A policy of controlled immigration exists as a means of realizing equal treatment of native and foreign subjects. Access to employment and housing are conditions for labor and residence permits. One of the fundamental principles of this policy is to give immigrants a free choice between staying in Sweden and returning to their country of origin or emigrating to a third country. If they decide to stay, immigrants receive: (1) time off with pay to learn Swedish, (2) compulsory schooling for their children, and (3) equal opportunities to participate in labor market training. This paper discusses Sweden's immigration policy, legislation, and research, giving statistics on the migrant worker population, the educational situation of workers' children, and the education and training of migrant workers. (NQ)