Paradiplomacy is one of the new types of diplomacy. In paradiplomacy, political units such as provinces, cities, and even departments are considered the most important players. , is the point of gravity of communication between the three countries of Iran, Afghanistan and Turkmenistan, therefore, it has provided a special strategic position in the field of political communication for this province. Now the question is, what is the paradiplomacy approach and its application in the border areas, especially Razavi Khorasan? It is stated in the hypothesis that, from Niels Hansen's point of view, paradiplomacy causes investment and development in the border region of Razavi Khorasan. In this article, the researchers use the documentary method by relying on written library sources and articles to explain reasons such as having cultural and historical attractions, . The results indicate that para-diplomacy in the Razavi-Khorasan border region can play a significant role in attracting capital, creating jobs, expanding various economic exchanges, and also helping the central government in solving regional, trans-regional and international issues. International in line with the country's constitution.