The article is devoted to the protection of the Russian Federation public policy interests in the field of intercountry adoption. It is established that strengthening of such protection entails changes in the legislation. Such changes are connected either with the super-mandatory character of already existing statutory mandatory substantive rules or with the emergence of new super-mandatory rules. In the field of intercountry adoption in Russia, this process is particularly striking. The study highlights that the general equation contained in Art. 1192 “Rules of direct application” of the Civil Code of the Russian Federation establishes two ways that allow by analogy to determine the super-mandatory nature of certain mandatory substantive rules stated in the Family Code of the Russian Federation: “by reference in the mandatory rules themselves” (the over-mandatory character of the rule is expressly determined by the legislator) or “because of their particular importance also for the protection of rights and legally protected interests” (the over-mandatory character of the rule is determined by the executor of law). It is concluded that the emergence of constitutionally significant values/public interests in the content of the mandatory substantive rule (“protection of morals, health, rights and legitimate interests of other family members and other citizens”, etc.) forms a criterion that allows the executor of the law to determine such rules as rules of over-mandatory character. Based on the analysis of international treaties of the Russian Federation on interstate cooperation in the field of adoption of children, the article defines the fundamental principles that make up the structure of intercountry adoption in the Russian Federation. It is established that the additional conditions and requirements of the state of child’s origin are included in the regulation of intercountry adoption (provisions of articles 165, 124-133 of the Family Code of the Russian Federation; provisions of bilateral treaties between Russia and European countries where more than 85% of Russian children are adopted (France, Italy, Spain)) to protect the interests of the RF public policy.