The epigraphy of Iranian artistic works has an old history. This study scrutinizes the book entitled ‘Ayat-al korsi’ and the data are the stuff from Islamic treasury in Iranian national museum. The population includes 25 artistic works. The research seeks to find the relation between ‘Ayat-al-korsi’ epigraphy and the application of artistic works. The research hypothesizes that the artistic works decorated with ‘Ayat-al-korsi’ have different applications. The results show that the concept of ‘Ayat-al-korsi’ is the most significant reason for choosing it for decorating artistic works with, and Iranian artists have benefited them according to its application. The greatest concept derived from ‘Ayat-al-korsi’ is its security aspect which is divided into three different categories and has been manifested in different calligraphies known as Kufi, Naskh, Sols, Taaligh, and Ghobar in different historic eras. The research methodology is descriptive-analytical through visiting Islamic treasury in Iranian national museum.