Review of family's social history, analysis of relations between family changes and historical situation. Development of attitudes towards child and childhood. Influence of modern society on family institution, discussions about family transformation. Ecosystem theory is used as a basis for analysis of relations between family and environment. These relations are discussed in the context of internal family ties, family - school ties and social exclusion. Introduction of a concept of social risk family, analysis of ways of supporting it. Methods of gathering information and ensuring social worker's safety in the process of social work with family.