Imad al-Din Tabary is one of the Shiite theologians of the seventh century. Conceptually, Imad al-Din Tabari's works are similar to his contemporaries like Khajeh Nasir al-Din al-Tusi, but they are apparently different and within their order.

Tabary tried to explain Shiite beliefs, defend them and rebut suspicions against Shiism through polemical approach and by using the Sunni sources, referring to the historical events and theological theories, employing rational and narrative pieces of evidence.

Since most of the suspicions against Shiism concentrate on the Imamate of Imam Ali (PBUH), a large part of Tabary's arguments are dedicated to proving his Imamate. He is one of the theologians who believed in the special creation of the prophets and imams (PBUT) that empowered them by inspiring God-given knowledge and exempting of any unnatural completion of human nature before and after prophecy and Imamate.

Thus, the present inquiry seeks to study the theological opinions of Imad al-Din Tabary by a descriptive and library-based method.

Keywords: Imad al-Din Tabary, Theology, Imamate, Imam Ali (PBUH), to study of God, to study of prophecy, Eschatology.