Improving the effectiveness of the Islamic Republic of Iran is one of the key issues in the fifth decade. The two great achievements of the Islamic Republic, namely "its states of being republic and Islamic", have made it distinctive of the Pahlavi regime. During the past four decades, we have witnessed the great achievements of these two components, but in order to exploit these two capacities more, it is necessary in the fifth decade to come up with some reflections on this. In this paper, the title "republicanism" has been discussed to answer this question, how can this capacity be used in the fifth decade of the revolution for more efficiency in the system? Using the high-level documents of the Islamic Republic and the prescriptive analytical method, it has been shown that in the future of the Islamic Republic, changes in the monitoring and participation of the people, both serving the people and strengthening the institutions of the people and government should be established.