The aim of current research was to study the structural modeling styles for attachment to God; resilience and mental health in mothers of children with intellectual and developmental disabilities. It’s a correlational design. The statistical population includes all of the mothers of elementary school children with intellectual and developmental disabilities who live in the city of Tabriz in the years 2014 and 2015. To fulfill the stated goal sampling 200 students were selected and the Connor- Davidson’s resilience inventory (2003) and Rowatt and Kirkpatrick’s attachment to God inventory (2002) and mental health inventory of Dragotis and et al (1976) were used to gather the data. Structural equation modeling revealed that among attachments to God, the secure attachment results in an increase in mental health; and the attachment with anxiety factors results in a reduction of mental health; and also the avoidance attachment results a reduction both in mental health and resilience. In addition, resilience was a reason to increase mental health; but resilience in the relation between attachment to God and mental health did not have any mediating role. In regard with the importance of the spiritually developmental constructions in raising positive effects on mental health and its application both on research areas and psychological interventions is suggested for mothers of children with intellectual and developmental disabilities and other groups