This article is dedicated to United Nations Convention on the Law of the Sea that was signed into law in 1982. This event had become one of the most important marks in international law’s establishment. For the first time in history an overall systematization and standardization of international norms of countries’ interaction in the seven seas took place, and today’s look of law of sea had been. The article also states that Convention on the Law of the Sea led to political and economic development of several countries, that managed to use it’s statements to justify their territorial claims. The clearest example, proving this thesis, is the Kingdom of Norway, which economic situation and political reputation have changed dramatically after United Nations Convention on the Law of the Sea was signed into law. Main point of this article is the process of Norway becoming high-powered arctic state and its government’s experience in using United Nations Convention on the Law of the Sea in its arctic strategy. Moreover, this article contains retrospective analysis of context in which United Nations Convention on the Law of the Sea was signed through the prism of political and economic situation in Norway; review of Evensen’s (Norwegian specialist) contribution in the process of the Convention development; up-to-date examples of Norway’s government using Convention’s states in executing above-mentioned strategy and in international arguments. Also, the article shows results of United Nations Convention on the Law of the Sea acceptation, that influenced Norway’s positions on international scene.