The study of emotional intelligence and academic performance is an extremely topical subject; more now in times of pandemic where emotions play an important role due to the changes generated in the teaching-learning process. The purpose of this study has been to check if there is a relationship between emotional intelligence and academic performance in mathematics in high school students; The paradigm of this research is positivist with a quantitative approach, correlational and transectional design, and the instrument used to measure emotional intelligence was the Trait Meta-Mood Scale: TMMS: Designed by Salovey, Mayer, Goldman , Turvey and Palfai (1995) and adapted to Spanish by Fernández-Berrocal, Extremera and Ramos (2004), reducing the original number of items from 48 to 24 items, the TMMS-24 and the correlation index used was Pearson's; The result of which showed that there is no relationship between emotional intelligence from its dimensions: emotional attention, emotional clarity and emotional repair with the academic performance in mathematics of students in grades 10 and 11 of the departmental educational institution Rodrigo Vives de Andréis.