Abstract
This research paper that entitled "Parliamentary Good Governance and the Mechanisms of application it under the Constitution of the Republic of Iraq 2005", comes to study the concept of governance and the most important mechanisms to achieve it in Iraq, also, strengthening the traditional constitutional functions of Parliament. Parliament considers the true representative of the people in the exercise of sovereignty. Also, the main job of Parliament represented in preparing legislation that reflects the needs of people and monitoring the Government's work aiming towards implementing the aspirations and desires of the people. Thus, Parliament is considered the mirror of a society with all its strength or weakness, this is a challenge for the development of parliamentary work and reforming it with a flawed reform in various aspects, especially that Iraq has witnessed a democratic transition after the adoption of its constitution of 2005, which presupposes a strong parliament capable of meeting these challenges .This study showed that the provisions of the Constitution of Iraq of 2005 include many defects and gaps that weakened the performance of parliament and affected its independence, as well as the contribution of the Federal Supreme Court through many of its decisions in achieving this weakness in performance and independence, which requires upgrading the performance of Parliament in the legislative and regulatory areas through the amendment of the Constitution and the rules of procedure of the House of Representatives, as well as the legislation of laws that contribute to the achievement of parliamentary good governance in Iraq.