The first work put forward in the 11th century after the Turks accepted Islam is the work named "Kutadgu Bilig" written by Yusuf Has Hacip in 1069. In this work, which means the knowledge that gives happiness, the author tried to explain the ways of making people happy both in this world and in the hereafter. In the introduction part of the book, Yusuf Has Hacip says that he called the book “Kutadgu Bilig” so that he may congratulate the reader and guide him. At the same time, this work, which has the characteristics of a politics, was presented to Tabgaç Uluğ Buğra Karahan, the ruler of the Karakhanids. In his work, Yusuf Has Hacip discusses the features that should be in politicians symbolically through four concepts. The work has an allegorical feature in that it describes the concepts through individuals, as well as having an instructive quality. Kutadgu Bilig shows us that, in thousands of years of Turkish history, despite many changes in geography, climate, religion, culture, and civilization, the understanding of society and state whose main lines remain roughly the same continues. In this study, all couplets of Kutadgu Bilig were examined in terms of "expressions of love," The related words are given together with couplet number, translation of the related couplets, and modern Turkish. Expressions of affection were classified according to different fields such as love for God, love for the prophet, love for the beloved, love for the ruler, and numerical information was given about these expressions. The most passing and least passing love expressions were determined. The study aims to reveal the vocabulary of the work in line with a theme.