This research aims to examine the main principles of Iran's foreign policy during the reign of Shah Abbas I Safavid based on the view of Hafez Farman Farmaian in the book Historical Analysis of Iran's Foreign Policy from the beginning to today and to answer the question that what principles did Shah Abbas I Safavid follow in governing Iran's foreign policy? The method of data collection in this research is library and documentary, and the method of data analysis is descriptive-analytical. The findings show that the main principles of Iran's foreign policy during the reign of Shah Abbas I Safavid were the same principles that F Farman Farmaian mentioned as the traditional principles of foreign policy. According to the findings, the principles governing Iran's foreign policy in the era of Shah Abbas were expanding and guarding the borders of the government territory, developing and protecting trade routes, supporting neutral countries on Iran's borders, and the approach of cultural tolerance and religious tolerance in the realm of governing.