Background: The presence of a disabled child associated with much care and psychological, social and financial stress that can have adverse effects on the structure and functioning of families and puts parents under physical, psychological, social and economic stress; So purpose of was to assess social adjustment of fathers having intellectually disabled children and fathers having normal children.

Method: This causal-comparative study was studied on 87 parents (40 fathers having intellectually disabled students and 40 fathers having normal children) that their children were enrolled in primary schools in Marivan. Subjects were in access group. Social Adjustment Scale Paykel and Weissman (1999) were used as an assessment tool. Data were analyzed using descriptive statistics, t-test, point biserial and Pearson correlation coefficient by SPSS 16 software.

Results: The results showed that there was a significant difference between social adjustment of fathers with intellectually disabled children and fathers with normal children (p< 0.05). Among the demographic variables, only the father&#39;s education is a significant relationship with social adjustment, fathers with higher educational levels have more favorable social adjustment.

Conclusion: Overall, fathers with intellectually disabled children have less social adjustment than fathers of normal children; level of father’s education can contribute to the favorable social adjustment. So, informing fathers, especially fathers with intellectually disabled children can be helped to gain favorable social adjustment.