Background: One of the most basic principles of establishing healthy and effective communication and relationships with other people is the importance of human ethical principles. Therefore, the research was conducted with the aim of mediating the role of moral distance in students' interpersonal relationships.
Method: The research is a descriptive-survey based on the purpose of the research. Statistical society including all students from the public and azad universities of Mazandaran province that 324 people were selected based on Morgan table and stratified random sampling method. Data were collected by moral distance and interpersonal relationships. Pearson correlation, path analysis and structural equations were used to analyze the data.
Result:  The results of path analysis indicated that the moral distance on empathy and intimacy, expressing existence, communicative skills, conflict resolution, maintaining communication and listening have a significant negative role. The moral distance has the highest effect on self-expression (β=0/610) and has the least effect on maintaining the relationship (β=-0/462).The results of structural equations show that moral distance has a direct negative effect on students' interpersonal relationships with path coefficient (β=-0/426). Finally, the fitting indices of the model indicate confirmation of the present research model.
Conclusion: Based on the findings of the research, the adoption of policies by managers that improve the moral and cultural values and reduce the moral distance among the students helps to promote their interpersonal relationships.