The subject of the elaboration is kantianism and Neo-kantianism as a philosophical provenance of intellectual assumptions in the concept of the Grundnorm by Hans Kelsen. In the beginning this text presents an introduction to the research analysis. An important legal issue is the Grundnorm in the structure of legal standards. These reflections are based on eighteenth and nineteenth century philosophies, such as Kant’s metaphysics and Cohen’s formalism. The above arguments are relevant for the science in the concept of the Grundnorm by Hans Kelsen. The text uses foreign literature. The article contains a short summary.