This study aims to explain and analyse the nature of the foreign policy of the Islamic state as conceptualized by Imam Khomeini (r.a). A review of Imam Khomeini’s views and perspectives on the foreign policy of the Islamic state demonstrates that its primary nature is rooted in cultural and value-based elements. Consequently, all other dimensions of foreign policy are defined within the framework of Islamic culture and values. This perspective underscores the importance of soft power in the foreign policy of the Islamic state. The present study employs a descriptive-analytical method, utilizing documentary and library research, to address the core question: “What is the nature of the foreign policy of the Islamic state from the perspective of Imam Khomeini (r.a)?” The hypothesis examined is that the foreign policy of the Islamic state, from Imam Khomeini’s viewpoint, has a cultural and value-based essence. The findings reveal that Imam Khomeini’s theoretical foundations concerning humanity, politics, and the fundamental elements of the Islamic state’s foreign policy, including its strategies and objectives, are inherently linked to culture and spirituality. Understanding the nature of foreign policy from Imam Khomeini’s perspective serves as a guide for decision-makers and policymakers in the foreign policy of the Islamic Republic of Iran.