In recent years in Iran, the development of interdisciplinary studies has caused a variety of attitudes toward literary topics to be created especially in literary criticism. However, in these studies use of interdisciplinary capacities for a more accurate understanding and creating transformation in other literary fields such as rhetoric and classical aesthetics of Persian poetry has largely been neglected. Therefore, the present research seeks to address allusion topic in rhetoric by a descriptive-analytic approach and to identify and introduce this rhetorical element based on new interdisciplinary studies approaches and literary criticism. The results of the research indicate that allusion despite its apparent simplicity is one of the most complex and multilayer elements of the rhetoric that can be examined and looked up using the modern achievements of various disciplines such as linguistics, semiotics, sociology and some theories and discussions of literary criticism