In the contemporary era, regionalism as aligned or Alternative to globalization, is one of the selective approaches of States. Iran, which is an international country and a regional power by geographical and historical circumstances, was able to improve its regional position from the beginning of the last decade of the twentieth century, with the end of the Soviet occupation of Afghanistan and the independence of the Central Asian and South Caucasus republics; But despite Iran's privileged geographical location, Iran's cultural and civilizational affinities with these countries and the formulation of six five-year development plans, during the past three decades, I.R. of Iran could not act as regional pole country and benefit from its regional capacities in relation to those countries. In the present study, the main question is "What is the position of the transnational region in Iran's five-year development plans?" and with using the method of document review and content analysis, the materials and clauses of the six development plans were reviewed. Findings of the article show that, in development plans, the meaning of the region is not clear; the amount of attention to the region in the programs varies widely and the main component of the region, its territory and its constituent countries, differs from one to another. As a practical result, suggested that "Iranian Civilization Area" as the geographical-cultural region surrounded Iran, be defined as the target region of Iran and a specific example of the transnational region in the country's macro-planning and policies. Manuscript profile