The aim of article is present the Polish legal solutions in the field of legalization of immigrants and the formal and legal conditions leading them to social assistance. The main method of the research was analysis of documents and literature. Legislation acts, research reports and statistical data occupied special place in the source material. The analysis was supplemented by interviews with employees of the Department for Social Assistance and the Department for Refugees Procedures in Warsaw. The article discusses procedures for social support and areas of intersectoral cooperation in the organization and provision of social support for immigrant families applying for international protection, with particular focus on a refugee status. Planning and organizing social support for immigrant families, applying for international protection in the Polish Republic is a multivariate process. It results from the fact, that immigrants are especially vulnerable social group and very heterogeneous. Therefore, providing a comprehensive legal, social and psychological support, dedicated to immigrant families, requires systemic solutions and taking such aid initiatives that will create a long-term structure.