The functions of constitution:
Organize the State structure: For example, in the USA, the Federal Government is divided in to three branches by the Constitution: Legislative, Executive and Judicial. The reason for this separation is to ensure that balance the power and there is no branch which controls too much
Limit the power: In the USA, Constitution limit the power of government by divide it between the national government and state government because when if not limit the power, a buse of power will appear . Although the federal government has much power over the state, all their power is limited in Constitution. And the local laws that conflict with the