The research aims to highlight the importance of the purposes of Sharia related to the protection of society. The research consists of an introduction, three topics, and a conclusion. The inductive approach, which is based on tracking the purposes of Sharia related to the protection of society, and the descriptive approach.The most important results of the research: a statement of the purposes of Sharia related to the protection of society, and I divided it into two sections. Gifts, justice in buying and selling in measure and balance, and the purpose of bringing benefits and warding off corruption, and the forms of interest were clarified in it, namely: removing public hardship from society, removing harm and paying it off from people, and that the ruler has the right to dispose of society in a way that achieves the community’s public interest. The purpose of preserving the five necessities, which are: preserving religion, preserving the soul, preserving the mind, preserving offspring, and preserving money, and the discussion was about the means of preserving the five necessities from two aspects: the existential aspect, and from the non-existent aspect, then I showed the effect of preserving these five necessities in protecting society.