In restorative justice, all those involved in a criminal process; victims, criminals and the local community have come together and are looking for solutions to eliminate the effects of the criminal process. At present, about a hundred countries of the world have turned to the implementation of restorative doctrines in the resolution of criminal disputes. Iran's criminal policy is also in line with the implementation of the principles of fair trial in cases of removing the punishment, changing the punishment or delaying the execution of the punishment; Also, the provision of restorative institutions such as postponing the issuance of verdicts and benefiting from principles such as mediation, in turn, originates from the principles of fair proceedings, which have provided good capacities for the implementation of restorative justice programs. In this way, the degree of application of fair trial principles in criminal policy indicates the degree of utilization of restorative justice findings in this area; Therefore, in order to know the extent of criminal policy utilization of the findings of restorative justice in criminal policy, the extent of utilization of the principles of fair proceedings has been the focus of its investigation and using the descriptive-analytical method and library tools, the principles of fair proceedings studies in the criminal policy from the perspective of the findings of restorative justice and finally comes to the conclusion that there are manifestations of using the findings of restorative justice in the legislative, judicial, executive and even participatory levels of the criminal policy of Iran. And Iran's criminal policy has not benefited from these findings.