This study, titled "An analysis of a 16th. Century's Qur?an?s ornamenting elements in terms of style, pattern and motif" is to investigate a Qur?an with inventory number A 6566 in Arabic Manuscripts Catalogue in Rare Books and Manuscripts Library in Istanbul University. Consisting of three parts, in the first part under the title of illumination art in the periods of Sultan Beyazid II., Sultan Yavuz Selim and Sultan Suleiman the Magnificent; of those periods adorning conception and craftsmen are investigated. In the second part given general information about Qur'ans, application of adorning on Qur'an pages are introduced by their features. In the third part, Qur'an with inventory number A 6566 in Arabic Manuscripts Catalogue in Rare Books and Manuscripts Library in Istanbul University is analysed in terms of its ornaments and adorning of the work approached delicately with photograph, drawing and pattern analysis.