Political development has gained significant traction since World War II, becoming a central focus for post-war theorists and politicians tasked with resolving the challenges of the era. Furthermore, all nations have pursued development across various levels, including political development, to enhance their international standing. One of the fundamental factors contributing to the advancement of political development is political parties. The role of political parties in Iran’s political development, both pre- and post-revolution, has consistently been decisive, transforming into a complex and multifaceted issue after the 1979 Revolution. Research findings indicate that parties, as key institutions in the political process, can contribute to strengthening democracy, public participation, and governmental accountability. However, challenges such as restrictions, suppression, and internal disunity have hampered the effective role of parties in this domain. This article seeks to answer the question: What role have political parties played in the political development of post-revolutionary Iran? The hypothesis proposed to answer this question is that political parties, by fostering internal cohesion and developing effective strategies, can overcome existing challenges and lead to the advancement of Iran’s political development. Given that the information for this research was gathered through existing and library-based sources, the research methodology employed is descriptive-analytical