The main objective of this study was to analyze the differences in emotional intelligence scores among students of different grades in a public institution in Cucuta, according to their biological sex. A quantitative approach with a non-experimental design was adopted and a stratified random sampling with proportional allocation was applied. The questionnaire used was the Trait Meta-Mood Scale (TMMS-24) Colombian version, and the data were analyzed using SPSS 29.0. The results revealed that female students showed greater attention to emotions compared to their male counterparts, with 44.0% and 38.6%, respectively. In addition, male students exhibited greater emotional clarity (29.8%) compared to female students (21.3%). In terms of emotional repair, 61.4% of male students demonstrated adequate emotion repair compared to 28.0% of female students. As a conclusion, it can be said that biological sex seems to be related to differences in the dimensions of emotional intelligence in students. Females tend to pay more attention to emotions, while males show greater emotional clarity and capacity for emotional repair