Background and Aim: An analytical look at the foreign policy of the Islamic Republic of Iran shows that its strategies and policies in the world system and the surrounding environment are methodical. In order to portray this issue, this study tries to methodize the policy of "enmity with the oppressor and support for the oppressed". Necessity and Question: The importance of this issue is that most of the mentioned strategy has not been studied in the form of theoretical and transtheoretical studies due to the label of being unscientific (Western attitude). Therefore, the concern is how the methods of recognizing the policy of "hostility to the oppressor and support for the oppressed" in the foreign policy of the Islamic Republic of Iran can be analyzed? Hypothesis and Method: The authors use the inductive method and analytical approach to introduce the innovative hypothesis that the four sources of religion, history, jurisprudence and futurism of Mahdavi, the policy of hostility to the oppressor and support for the oppressed. Findings: The structure of religion, through the methods of " Tawalla and Tabarra", Principle of "No way" and "jihad", the border between the oppressed and the oppressor in foreign policy. Due to its spiritual and material results, the source of history puts the methods of "believing in the culture of Ashura", "the spirit of self-sacrifice", "denying hegemony" and "maintaining independence" on supporting the oppressed and hostility to the oppressor on the foreign policy agenda.
