Background and purpose: damage reduction is one of the important issues in the field of international arbitration, which is discussed in the field of contracts and compulsory guarantees. The purpose of this research is to examine the rules governing damage reduction in the oxide arbitration procedure. Materials and methods: The method of this article is analytical and descriptive and the research tool is library. Ethical considerations: In the writing of this article, documentary referencing and trustworthiness are the basis. Findings: Damage reduction for the purpose of justifying logical, rational and calculating behavior expects the plaintiff to adjust his behavior based on preventing the spread of damage. Therefore, creating a kind of forecast to negate more damage is one of the important achievements of damage reduction in the IXID arbitration procedure. Therefore, the abuse of the right and proceedings and efforts to reduce damages against the victim is the result of IXID arbitration. Conclusion: The important result of IXID arbitration is preventing unnecessary damages, preventing unfair proceedings by governments against foreign nationals, including investors, advising the petitioner to avoid further losses and comprehensive damages, reproducibility of votes for fair proceedings and creating responsibility. It is for loss.