The development of science and technology spur the human to be creative
and later emerging various products. This is trigger the producers to plunge into
competition to offer their products with various ways in order to their products to be
in demand in the market. One of the ways is to give the best service to consumers with
giving guarantee. In one side, guarantee is useful as an appeal for consumers, in the
other side, it is useful for consumers to protect their rights. This paper will be focused
on guarantee and its application according to Islamic perspective. The course include
definition, functions and purposes, benefits, and lastly closing. In the Islamic law
treasure have been acquainted with khiyar aib which the substance is same with
the guarantee. The guarantee agreement according to Islam is allowed to achieve
the human benefits and equality in Islamic economics. Such that application of the
guarantee agreement have to revere the muâamalahâs principle namely equality.