The Boxall Profile provides a framework for the structured observation of children in nurture groups. It is a detailed and rigorously trialled normative diagnostic instrument developed for teachers and teaching assistants to measure children's levels of emotional and behavioural functioning. Moreover, it highlights specific targets for intervention within a child's individual functioning. As of yet, the psychometric properties of the French version of Boxall Profile have not been extensively studied. In total 169 boys and 23 girls (N = 192) ranging from 6 to 13 years old (M = 9.24 years old, SD = 1.83) were assessed by their teacher using the French version of the Boxall Profile, the Strengths and Difficulties Questionnaire, and the Teacher Report Form. Internal consistency analysis (Cronbach's Alpha), correlation analysis, exploratory factor analysis, and area under the receiver operating characteristic curve (AUC) were performed. The results demonstrate good reliability of scales and sub-scales, the fit of the first level of factorial structure, and good concurrent validity. These results suggest the effectiveness of the French version of the Boxall Profile in properly identifying students facing difficulties. Possible solutions are discussed to improve the construct validity of the second and third tiers of the instrument.