Before Abdolghaher Jorjani, "rhetoric" term has been expressed in rhetorical books and literary criticism but the limits of eloquence or eloquent speaker have not been explained. In the works after Jorjani, they have considered a word or words eloquent that they have no particular imperfections; but they have not explained about the eloquent speaker except a vague and general statement. In this research, the presented subjects from the point of view of the rhetorical scholars, from the beginning until now, that were incommensurably given about the eloquent speaker was studied, criticized and compared; finally in addition to state the conditions for speaker to be eloquent, a definition has been presented for it…