The following research is responsible for the critical evaluation of the pluralism theory of salvation in the Holy Qur'an regarding the issue of sufficiency in monotheism. Those who believe in this theory consider faith in God, the Day of Judgment, and doing righteous deeds as the only criterion and factor for salvation, while God Almighty in the verses Many have talked about the comprehensiveness of Islam, its authority for the public, and its abrogation of previous religions. Based on this, the present research, which uses library data and a descriptive-analytical method, investigates the theory of salvation pluralism in the Holy Quran regarding the sufficiency of monotheism. The findings of this research show that every nation, during the time of the validity of their religion, are subject to it and act according to its instructions, they are the people of prosperity and salvation, the scope of Khatam's prophecy is global and God wants the followers of other religions to follow him. believe, the people of the book have been blamed for not accepting the religion of truth, and from the Quran's point of view, believing and doing righteous deeds do not make sense if they do not accept the religion of Islam. It is one of the commands and abandoning some others. Therefore, the mentioned verses cannot be considered as supporting the theory of pluralism of salvation.