The article offers an explanation of the conditions that affect the family and are subject to significant changes in the context of migration and its role in the formation of ethnic identity in children and adolescents immigrants. It emphasizes the factors that lead to the change of identity, as well as the causes that favor the rejection of ethnic identity. In the self-defining scenario in which the immigrant child or adolescent is strongly influenced by family orientations, the path of defining belonging is not free, but full of „contamination”, such as the group of colleagues, the cultural, social environment in which it grows. This can bring significant elements of redefinition and change of the identity models transmitted by the family.