In the extensive range of fictional literature, Nezami's "Khosrow and Shirin" shines as one of the most fascinating and most beautiful lyrics in Persian literature. This poem provides a suitable context to the structural analysis due to having concepts, elements and good story motifs. In this research, we intend to review and analyze it in term of narrative structure based on Propp's pattern in the morphological analysis to reach the conclusion that how these elements and narrative motifs change from the raw shape of the story to the narrative outline in its syntax combination and in this manner to attain the effect of story's lyrical content expression on its elements. Before addressing the story based on Propp's models, we'll deal with the preliminary discussions such as history of formalism, structuralism and morphology. Then we'll review and analyze the narrative structure analysis of this poetry based on internal elements according to important points and structural models to find out what arrangements are applied by Nezami to establish units of this story and how the extent of the story's internal strength is due to the structuralistic entity.