Humans are social beings. The norms of law that determine the basic rules of living together are as old as human history. In the context, it is possible to come upon various practices of law that originates from different needs, starting from primitive tribes to the Arab society of the Jahiliyyah period and to the Quraysh tribe which is the prototype of this society. The law practiced by the Arabs in general and by the Quraysh in particular can be put forward only with extensive studies when it comes to its specific aspects and original dimensions, and whether there are any influences of neighbouring states and civilizations on its structure and similar unknowns about it. Nevertheless, a study on the "hilf practice" which the Arab tribes and especially the Quraysh often practiced will be helpful to form an opinion on the Jahiliyyah law. It seems that there is an angle of consistency within the Jahiliyyah law itself. However, in a region where there exists no political organization at the state level, it is understood that the law was formed by the powerful and accommodated their world view and interests and thus became the law of certain people and groups rather than the whole society.