Religion is often used as a tool to achieve certain political goals, which is certainly reasonable if it is for a good purpose. However, if it is directed towards negative matters and actions that can harm others or different groups, then this is not right. By referencing religion, some circles find it very easy to use claims that sharpen conflicts, slander opponents, and unite militantly in the name of God. Starting from this reality, building mutual trust among followers of different religions becomes very important in reducing violence in the name of religion, inter-religious conflicts, and injustice. This article will elaborate on how Islam teaches the importance of appreciating differences and mutual understanding of diversity. The theme of this literature research is about multiculturalism in Islam and discussions on how to instill the values of Islamic teachings in a diverse society. The results of this research draw a conclusion that Islam teaches the concept of multiculturalism to manage differences and foster the mental maturity of Muslims to understand diversity. The next conclusion is about the need for innovative steps to combine the values of Islamic teachings with various existing cultural systems.