The EmIn questionnaire assesses the main components of emotional intelligence, in particular, the ability to understand one's own emotions and the emotions of others, as well as the ability to manage these emotions effectively. The aim of the study was to evaluate the psychometric properties of this questionnaire and adapt it for an Azerbaijani population. The sample consisted of 390 participants, of whom 74% (289) were women and 26% (101) were men, aged 18-35 (M=19, SD=4.94). Using EFA, the two-factor structure of the questionnaire was determined: the two-factor solution accounted for 25% of the total variance, and the factor loadings revealed a range of values, while the lowest recorded value was .399, and the highest was .704. The study evaluated four models: a five-factor model, a two-factor model, a two-factor model obtained as a result of exploratory factor analysis, and a modified two-factor model. CFA results demonstrated a high degree of agreement with the modified two-factor model (CFI=0.913). The internal consistency of the EmIn questionnaire shows acceptable psychometric indicators and partially corresponded to the original version (interpersonal EI = .872, intrapersonal EI = .777, and general EI = .799). Significant gender differences in intrapersonal emotional intelligence were revealed: men showed significantly higher results than women. The Azerbaijani version of the EmIn questionnaire generally demonstrates satisfactory psychometric properties. Although the current study used fundamental methods of psychometric analysis to evaluate the results, it is important to recognize that it is not without limitations. One important aspect that requires further study is the validity analysis of the questionnaire.