Kufi script has been a script for the Quran since the early days of Islam and has also been used in various architectural structures and inscriptions. Its exciting development continued in later centuries throughout the Islamic world, particularly in Turkistan, resulting in the appearance of calligraphic inscriptions on architectural structures. The Kufi script, which showed itself in different combinations in the architectural monuments created by the Great Seljuks in Khorasan and Iran, has become a cultural and religious monument that extends to the Turkish lands, taking on different appearances. The utilization of Kufic script within the realm of the Seljuk state of Anatolia was characterized by a distinct dynamism. This is evidenced by the presence of the script on various architectural structures in major Seljuk cities such as Konya, Kayseri, Sivas, and Malatya. Examples of this include the Karatay Madrasa, Izzettin Keykavus Hospital, and the Old Malatya Ulu Mosque in Konya, the Sırçalı Madrasa, and the Alâeddin Mosque, all of which serve as testament to the script's aesthetic appeal. The Alâeddin Mosque, located in the city of Konya, is an architectural structure that was initiated during the reign of Sultan Mesud I (1116-1155) of the Seljuk Turks of Anatolia and completed during the reign of Sultan Alâeddin Keykubad (1219-1236). Situated on a hill known as Alâeddin Hill, the mosque underwent various expansions and renovations throughout its history, resulting in the formation of distinct architectural phases. One of the most striking features of the mosque is its monumental crown gate in the Nothern, as well as the two cupolas present in the courtyard. The first of these, which was used as a dome for Seljuk sultans, is fully completed, while the second remains unfinished. In terms of decorative elements, the dome, located in a relatively central position, is particularly noteworthy. Here, the use of the mosaic tile technique, which was a hallmark of Seljuk architectural decoration, is prominently displayed. In the field of Turkish art (history), the study and evaluation of epigraphy and ornamentation in Kufic script is a crucial aspect. There is a need for further research and analysis in this area, particularly in terms of design. This study aims to examine the development of Kufic script and the decorative elements of the Alâeddin Mosque, with a specific focus on the aesthetic characteristics of the Kufic inscription on the mihrab niche. Additionally, this study also includes a visual analysis of the inscription.