Methods: After assigning groups (experimental and control), the experimental group’s mothers participated in 10 sessions of attachment-based intervention program over 2.5 months and control groups did not receive any intervention. By the end of intervention, the posttest and then follow-up test were done after 45 days. Instruments comprised ‘child attachment disorder,’ ‘disorders caused by eating,’ and ‘eating disorder’ questionnaires. 

Results: The results of univariate analysis of covariance showed that in the posttest and followup test of the disorders caused by eating, there were significant differences between control and experimental groups. 

Conclusion: According to the results, the attachment-based treatment can be used as the method of intervention to reduce disorders caused by eating in children with eating disorders and obesity.