Introduction Before attempt to answer this question, it is necessary to discuss the definition of the doctrine of egalitarianism, prioritarianism and the purpose of this doctrine. The doctrine of egalitarianism is a prominent trend in social and political philosophy, which provides that all people should be treated as equals. Equality is the central to justice and holds that all people should have the same social, political, economic, and civil rights. Since the late twentieth century, it has also become relevant in moral philosophy. In social and political philosophy, it raises two different question and these are the Equality of what trend and why equality trend. Egalitarians consider that equality and justice are interrelated. On the other hand prioritarians emphasise that both concepts are different. In order to answer this question it needs to discuss distinction between the Equality view and the Priority view. Here it is most important to consider which are more facilitating for individuals when their interests conflict with those of more advantaged individuals. In “Equality or Priority?” in The Ideal of Equality, Derek Parfit discuss the distinction between egalitarianism and prioritarianism which central element to discuss here. Then need to draw a conclusion that which view is superior. Equality can be arising in many different perspectives and there may be no appropriate answer to all of these circumstances. Insofar as equality is implicit as a substantive social value which is distinct, for instance, from the formal principle that all people are of equal worth that individual should treat like cases alike and from the axiological verdict and the basic reason is that there is something valuable on human relationships that are differences of power, rank or status. The differences of power, rank and social status are prevalent to human social life. Starting from the primitive communal system to modern society in every society there are two class and they are oppressor and oppressed, stood in constant opposition to one another. This conflict carried on an uninterrupted open fight, a fight that each time ended either in a revolutionary reconstitution of society at large, or in the common ruin of contending class. More or less all human institutions and organizations identify hierarchies of authority and most social roles confer distinctions of status, for instance the relationships of doctors to patients, parents to children, teachers to students, employers to employees, lawyers to clients, and so on. It is supposed that two persons are equally well-off. According to a social status compatible with the priority view, it needs to consider whether it’s possible for one to have priority more than the other. However if they get equal priority, then automatically better off will have greater priority than an individual who is worse off. This implies that in both views give priority to worse off persons over better off agents though for different reasons there are priority views to be distinguished from equality views. Parfit concluded that when comparing distributions for two individuals it need not ask how well off is everyone else because priority view is special in the fact. The Pr