Avicenna and the Role of Metaphysics in the Religious Hermeneutics is an interdisciplinary study that relates metaphysics، hermeneutics and religious texts (Quran and Sunnah) to each other. This article deals with the examination of the role of metaphysics in the understanding of Quran and Sunnah and the problems related to them. This study is fundamental، historical and analytical which is a library based research based on reliable sources. The results shows that in Avicenna’s view the best understanding of hermeneutics and religious texts (Quran and Sunnah) is done by the interpreter. He believes that this is the interpreter who uses his presuppositions to understand the views of the author or the religious texts. In this article، we are going to identify the metaphysical assumptions of Avicenna to understand the issues related to the knowledge of origin and return، cosmology، eschatology، and prophetology. By understanding these presuppositions, he has gained results that do not concur with a superficial view of religion.