The developments of 1991 in the former Soviet Union, which led to the independence of the Central Asian Republics (CSI), are of particular importance to the Islamic Republic of Iran. Because a suitable platform for closer relations in the direction of geopolitical interactions between Iran and Central Asia has been provided. The discussion of the legal regime of the Caspian Sea and the effects of this sea on the lives of people living in the five Caspian littoral republics also finds a special meaning from geopolitical interactions and it is necessary for the Islamic Republic of Iran to reach an acceptable result with other coastal countries. Find. Due to its special situation, the Islamic Republic of Iran, due to its prominent role in geoeconomics, geoculture and other existing components, can play an important role in the field of oil and gas energy export through the Iranian route and in the region's cultural interactions. Reduce the negative effects and consequences of the presence of trans-regional countries, especially the West in Central Asia and the Caucasus, as well as cooperate in preventing the smuggling of goods and drugs and extradition of criminals, and in short, mutual respect for national values ​​and Patriotic, the travel of the officials of these countries to each other, the strengthening of political representations and special attention to the export and import of goods and services will be in line with our national interests.