The control on the constitutionality of laws, one of the most important guarantees that reinforce the principle of the Constitution as the source highess the ultimate and the highest for all legal activities in the state. highess the Constitution as it becomes the principle of illusory if there is no body in the state holds control over the Compatibility with the legislative acts of brokerage Constitution In order to achieve this purpose, the Constitution of 1973 established the Supreme Constitutional Court and entrusted with the presidency of the exercise of the job, which was keen to adopt the Constitution of 2012, with his quest to expand the role of the court in the exercise of this power will try this research highlight the role of this Court through a comparative study between the constitutions of 1973 and 2012 by analysing of constitutional provisions governing the control exercised by the Supreme Constitutional Court in the Syrian Arab Republic. ...