Objectives: Behavior rating scales have been developed to increase ecological validity in the measurement of executive functions. As the teachers have a lot of contact with the students in the school environment, behavioral rating scale teacher’s form can provide useful information. The purpose of this study was to investigate the reliability and validity of the behavioral rating inventory of executive functions teacher’s form among primary school students of Iran. Methods: The statistical population consisted of primary school students of Jajarm city who were studying in the academic year 2016-2017. Students (n=360) were selected through sampling two-stage clusters. The behavioral rating inventory of executive functions (BRIEF) teacher’s form for students was completed by their teachers, and the Wechsler’s coding subscale was completed by the students. Results: The results showed that the internal consistency of this inventory was 0.98 and for all subscales ranged 0.75 to 0.92. Also, subscales related to each other significantly. Regarding convergent validity, Wechsler’s coding subscale had a significant correlation with the subscales of executive functions. Also, results showed that two-factor model with eight subscales were confirmed by confirmatory factor analysis.  Discussion: Given the satisfactory reliability and validity of BRIEF tool in the school environment and results of this study indicated the relationship of executive functions with academic problems; this tool could be used to examine students’ executive functions.