Background: Family caregivers of patients with mental disorders play the most important role in the care of psychiatric patients (PPs) and preventing their readmission. These caregivers face different challenges in different cultures. We conducted this study to determine the challenges of caregivers of patients with mental disorders in Iran. Materials and Methods: This study is a narrative review with a matrix approach conducted by searching electronic databases, SID, IRANMEDEX, MAGIRAN, PUBMED, SCOPUS, Web of Sciences, from February 2000 to 2017.