Purpose. The aim of the work is to determine the ways of harmonization of doctrinal transformations of the foundations of the rule of law, the formation of a conceptual model of the principle of the presumption of human integrity. Methodology. The methodology includes integrative analysis and generalization of the available scientific and theoretical material and the formulation of relevant conclusions and recommendations. During the study, the following methods of scientific knowledge were used: system-structural, logical-normative, functional analysis. Results. In the process of research, it was recognized as the need to consolidate at the level of constitutional norms the principle of the presumption of integrity and legitimacy of the actions of each person. In view of the consolidation of this principle, the standards of proof in the consideration of litigation should be adjusted. Taking into account the introduction of this doctrinal basis, the ways of exercising the discretionary powers of the court and other legal institutions in the interpretation of law and the implementation of law enforcement are shown. Originality. In the process of research, a doctrinal and conceptual model of the constitutional principle of the presumption of human integrity has been formed. The correlation of this principle with other principles of the rule of law is shown. The place of the presumption of human integrity in the integrative basis of the rule of law and its role in strengthening the guarantees of protection of human rights and freedoms are revealed. Practical significance. The results of the study can be used in law-making activities for further improvement of legislation, as well as in law enforcement activities to improve counteraction to defamation.