Attar Neyshaburi was one of the prominent poets of the 6th century AH in the Islamic world. In his era, sectarian conflicts disrupted the order of large cities such as Neyshaburi. Although the Sheikh considered himself a Shafi'i in the traditional sense, he did not neglect the Na'at of the Shiite Imams in order to extinguish the fire of religious prejudices by adhering to tolerance through religious balance and tolerance. The purpose of the present study, relying on the descriptive-analytical method, is to examine the qualitative emphases of Na'at in Attar's works (Asrar-nameh, Ilah-nameh, Mukhtar-nameh, Mantiq-al-Tayr, Masab-nameh and Tazkir-al-Awliya), which shows that this Iranian elite's language in the text has turned towards the repeated and extreme Na'at of Imami Shia values ​​and norms, which is unparalleled in Shafi'i discourse. The explicit reference to the fundamental concepts of text and guardianship, imamate, infallibility of the Imam, intercession and recourse to the Imams, naming Imam Hussein (AS), cursing the perpetrators of the Ashura incident, mentioning the Shaqshaqiyyah sermon, and other components, especially in his later works, indicate that Attar changed his religion to Shiism at the end of his life, taking into account the preference and dense qualitative and quantitative range of the Naat of the Ahl al-Bayt (AS). Also, despite the taqiyyah that is developed in the text of his works, he reveals the fundamental changes in the religious context of Nishapur from Shafi'ism to Shiism in the heart of Greater Khorasan. Exploring his life through his works as a representative