In this article, we are trying to give an introduction about Iran the generalities of tourism in Iran. Iran has a vast land area of 1.648,000 square kilometers and is located in the southwest of Asia, between Turkmenistan, Azerbaijan and Armenia in the north, Afghanistan and Pakistan in the east, Turkey and Iraq in the west. The entire southern boundary of Iran is surrounded by Persian Gulf and Oman Sea. The total land borders of Iran are 5170 km, and its total water borders in the north and south are 2510 km. Iran is located in the heart of the Middle East, and as the Polar seaside of Mazandaran, the most beautiful lake, connects the world to the Persian Gulf, as well as the four-way east and west linking the cultural, spiritual and political manifestations of the East and West. The country is among the top 5 countries in the world due to climate and biological diversity, and is historically and culturally among the top 10 countries in the world.