Verses and narrations that condemn the infidels and their behaviors or express the Muslims' interaction with them, have made the doubt that Islam has presented a discriminatory moral system for the benefit of believers and against non-Muslims, and has ignored moral values and humanity for non-Muslims. This research, which is organized by library research methods and descriptive analytical method, seeks to answer this doubt. According to this research based on religious teachings, in observing moral principles and social behaviors and customs, there is no class discrimination based on belief, but the subject here is "human" and, except in exceptional cases, there is no distinguishes between Muslims and infidels. What has strengthened this doubt is, on the one hand, the lack of distinction between the "spiritual status" and the "social interaction". On the other hand, there are teachings that authorized "vilification", "slander" and "backbiting" to opponents. The present article criticized these perceptions and proves the need to observe moral and behavioral values confronting non-Muslims.