The experience of the advanced countries demonstrates that the programs of simulation in the training of researchers and executors in international relations are very useful and efficient. Despite this fact, the holding of simulation models especially modeling in this regard has gained less attention in Iran. Considering the aforementioned fact, this article seeks to answer the question that how can modeling be made in the field of international relations and which models and programs of simulation make our academic community closer to instrumental rationality and scientific decision-making? Since gaining success in foreign policy and international relations is contingent on scientific decision-making and planning, the author proposes the hypothesis that imagined modeling based on knowledge, research, expertise, and the country's necessities will directly affect the capabilities and academic expertise of the country's experts and specialists in the field of international relations. In order to test the hypothesis, a variety of simulation programs and models in international relations, their conceptual discussions and the author's academic-research findings along with the experience drawn on the holding of simulation models in the country are taken into account.