Objectives: To assess the reliability and validity of the abridged version of the Farsi version of Scale to Assess Unawareness of Mental Disorders (SUMD), as well as examining the change in insight among patients with psychotic mania in the course of recovery. Method: In a cross-sectional study, 36 patients with psychotic mania were evaluated for inter-rater reliability by researchers. Subsequently, 60 patients with psychotic mania were evaluated using SUMD (Abridged), Young Mania Rating Scale (YMRS), and Global Assessment of Functioning (GAF) scale in two steps: first in the beginning of admission (acute phase) and then during discharge (recovery phase). Results: Inter-rater reliability was calculated using intra-class correlation to be 0.73-0.93. Improvement of patients’ insight during the acute and recovery phases (p<0.01) indicated the validity of the scale. Conclusion: Farsi translation of abridged version of SUMD has proper reliability and validity.