The subject of the article is an important contemporary issue, from the perspective of law, but also from the perspective of broadly understood social sciences (pedagogy, psychology), of taking into account the welfare of a child in the event of a conflict between family members. The author shows the instruments developed by the legal system to protect the interests of individual family members, in particular the interests of a minor in case of conflict. The considerations cover the material and legal bases for the settlement of conflict situations between family members, with particular emphasis on the implementation of the postulate of the child's welfare at each stage of the proceedings and regardless of the personal situation of the child's parents.