Currently, special attention is paid to the general living conditions of children in families born from interethnic marriages. Children growing up in such families are exposed to stressors due to high levels of family conflict, differences in cultural values and problematic parenting, which changes their worldview. In multiethnic families, ethnosocial and ethnodemographic processes occur on a certain scale and are carried out under the significant influence of the psychological factor, since representatives of ethnic groups are real people. Also, in such families there are many combinations of ethnocultural identity, depending on which ethnic groups are united in marriage, the nature of local ethnic interactions and the general ethnic situation of the family’s place of residence. The article analyzes the results of empirical research on this issue.