After invention of writing, this new innovation jointed images, and writing together with painting became able to transfer human’s information and ideas. During the Islamic period, simultaneously with the widespread use of paper in painting and calligraphy, a kind of painting developed that is called as miniature.The illustrated inscription of Iran in Islamic period have different type of political,cultural historical and etc information .The informations are important to historians ,archaeologists and other scientists. The Purpose of writing this essay is to introduce the pictorial inscription “Shahname of Baysongor Merza” as a historical, archaeological source of taymourid period. In addition, importance of this pictorial inscription in Archaeology and History interpretions will be expressed.