In the history of Iran, Afsharid's dynasty is among the ones which didn't last long, but is has attracted the attention of many researchers due to its founder's unprecedented measures. The writing and compilation of various written works including books, paupers and so on by domestic and foreign writers indicate the special significance of this period during the contemporary history of Iran. people such as Lawrence Lockhart has compared Nader with great men like Napoleon and others in the field of military genius and political talents and have considered him as being superior to them, and professors such as dr. Abdolhadi Haeri has introduced him as the pioneer in the theory of Islamic unity and the unity of Islamic world what has not been dealt with and even the minimum of it's different dimensions has not been studied is the study of the root and causes of his various and sometimes contradictory religious inclinations which have come from his fragmental stand during the period. In the present article, the exiting probabilities have been studied.