Conventional Microeconomics, in fact, the general predictions about the behavior of economic entities is formed. To predict the behavior of the economy, Initially, considers the target for the agent, then the way to achieve that goal assumes.

Axis maximization of individual interests and behave in a rational way means it. Considering the assumption, provide an overall prediction for economic units is possible.

In Islam These two assumptions, As portrayed, are not consistent with Islamic values , But it is necessary presuppositions no longer fits them to be replaced with Islamic values.

The behavior of a Muslim in various aspects, including economic dimension is influenced by Islamic values And Islamic values, in turn, is based on Islamic beliefs. This study will be discussed the situated of assumptions of the theory of demand and As well as the logic of demand behavior in the community of Islam. finally evaluation criteria Practical principles of Islamic society Consumption with a view the Consumption in the Iranian economy is suggested.