In the article are the concept and content of public interest in the civil law of Ukraine. Based on statements concerning separation of private and public interest in law, we define the mechanism of public interest in civil law.
The article presents the concepts and features of private law. Revealed features of legal
constructions in private law that depending on the subject and method of legal regulation of
individual industries. The features use of legal constructions in the areas of private law rights
and ways of securing them in the legislation. Analyzes the legal constructions of relationships,
contract in key sectors of private law: civil, family and labor law