In Iran, due to reasons such as the weakness in the lack of civil movements and organizations, the divergence of subcultures, the lack of a vision based on a written program in order to design and explain an appropriate model of nation-building, and Such other cases, the nation-building project has always remained unsuccessful and incomplete, and we have always witnessed that this category has not progressed in parallel with state-building. In fact, the nation is a soft and abstract concept, and creating a nation structure requires providing specific materials and materials in order to establish the form of a sustainable nation and bring it to the forefront. These infrastructures can be described in dimensions and indicators such as the state of social communications, ease of movement of elites, integration in the fields of culture and language, strengthening and rationalizing bureaucratic processes, in order to complete the nation-building project. Accordingly, the main question of this research is: based on what model can the development of the nation and the nation-building process in Iran be designed and explained? In response to this assumption, it can be proposed that the development of the nation requires the existence of infrastructures and mechanisms based on considering it as a project in various cultural, social and political dimensions, appropriate to the structure and context of Iranian society, by the government, elites, civil institutions, parties, organizations and the people. It should be noted that this research, using the causal method and utilizing the theoretical framework of nation-building by Karl Deutsch, seeks to explain this issue and answer the main question of the research, namely the failure to realize a new model of nation-building