Background and Aim: The establishment of a parliamentary system in the Islamic Republic of Iran has been the challenge of thinkers and the focus of many studies. Previously, the possibility of transforming the political regime into a Parliamentary in the structure of the Iranian legal system and its challenges and threats have been discussed and conflicting. However, considering the importance of consequentialism in the construction of political systems, a specialized-analytical research in this area becomes more priority. With this objective, the present study, with a consequentialist approach, considers the impact of parliamentarization in the Islamic Republic of Iran on the components of development and citizenship rights. Materials and Methods: The present research is done by descriptive-analytical method and using librarydocumentary sources. Findings: Citizenship rights at political, social and economic levels are directly or indirectly affected by the change of political regime through the components of the synergy or divergence of forces, as well as the manifestations of democracy and the participation of citizens in determining their own destiny. In the Islamic Republic of Iran due to the special status of presidential elections and the situation in it, as well as the weaknesses of the party and the parliamentary elections and also the quality of the relations between the ruling powers, changing the regime from a presidential to a parliamentary system, without fulfilling the requirements and preconditions of this change, narrows the scope of citizens' political rights which subsequently in the context of individual freedoms and social rights, as well as economic development, can have negative effects. Conclusion: Providing the requirements of the parliamentary system, such as party culture, legal changes and structural changes, makes the transition to a parliamentary in the Iranian legal system possible by promoting the components of citizenship rights, however, considering the costs that this process imposes on the government and the citizens, the hypothesis of improving the quality of the current presidential system with the aim of having a positive impact on the political, social and economic rights of the citizens is supported.