Sluggish Cognitive Tempo is used to describe a particular type of attention deficit, concentration, and slowness in information processing. The aim of this study was to investigate the psychometric properties of the Sluggish Cognitive Tempo SCALE (SCTS) of the parent form among Iranian children. The present study is a descriptive study. A sample of 1700 people was selected from the provinces of Tehran, East Azerbaijan, West Azerbaijan, Kurdistan, Fars and Khorasan using cluster sampling method. 122 subjects were excluded from statistical analysis due to incomplete answers to the questionnaires and thus the final sample was reduced to 1578 parents. The confirmatory factor analysis method and internal consistency were used to compute the Sluggish Cognitive Tempo SCALE factorial validity and reliability, respectively. Also, in order to examine the construct validity of the Sluggish Cognitive Tempo SCALE, we computed correlations between different dimensions of Sluggish Cognitive Tempo SCALE with Attention Deficit SubSCALE of Mental Health Assessment Questionnaire for Children and Adolescents. The results of statistical results showed that this SCALE has structural validity, criterion and convergence in Iranian society. The results indicate that the SCALE is three factors and also the validity of the SCALE using Cronbach's alpha method and retest test after Approved two weeks. According to the findings of the present study, the parent form of the Sluggish Cognitive Tempo SCALE (SCTS) has a good validity and reliability and it can be used in research related to slow cognitive multiplication in Iranian society.