The legislature is responsible for three important functions such as legislation, interpretation and enforcement of normal laws and supervision over the implementation of law as one of the dominant forces in the country. The legislature suffers from some weaknesses and shortcomings, although it has gained some achievements and enjoys a lot of strengths in performing its missions. This article tries to find the ways to empower this branch by removing all barriers facing the legislature. In this regard, we will respond to the raised questions by using information collection methods including library, descriptive and analytical research. First, the author discusses the nature, structure and functions of the legislature.Then, he examines the shortcomings of legislative techniques and the weaknesses existing in organizing and monitoring the procedures of the Parliament in order to improve operational the efficiency of the Islamic Consultative Assembly the Parliament of Islamic Republic of Iran. The sources of shortcomings and weaknesses of legislature can be classified into internal factors (i.e. within the Parliament) and external factors which constitute the most important conclusion of this study, in addition to some technical and minor amendments, the comprehensive coordination of political, legal, cultural and administrative structures should also be considered to promote and strengthen the legislative system of the country
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