After al-Nandah since 1798, the Arab society had been experienced much rapid social revolution. This revolution had influence the linguistic consciousness among Arab. The most of. the Arab linguists in that time had suggested the proposal to the renaissance for Arabic. This dispute about Arabic renaissance had mainly concentrated into the diglossia. The insistence for the solution of diglossia was largely divided into two parts (conservative and reformist). Although they had the same object for the Arabic renaissance, the procedures for it had shown much different and confronted sharply between both. In this article, I would like to analysis each backgrounds and the difference of each insistences in order to understand the linguistics situation in the Arab world concentrating diglossia. And I will try to give the solution personally to solve the problem of diglossic situation in Arab world.