The main purpose of this research was to study the effect of emotional regulation on the athletic performance. The present research was descriptive-correlational in terms of research method and applied in terms of purpose and survey in terms of data collection method, which was conducted in the field. The statistical population of this study includes all male athletes in Bayburt in team (football, volleyball and handball) and individual (track and field, judo), with an average age of 16 ±2.6 years old, from which 30 students were randomly selected Voluntarily. Data collection tools consisted of three questionnaires: Charbonneau exercise performance questionnaire (2001) and emotional cognitive regulation questionnaire (Garnowski et al., 2001). The validity of these two questionnaires was 0.82 and 0.91 by Cronbach's alpha coefficient in this study. Regression correlation test was used to test the hypotheses .The results showed that the athletic performance of high school male students can be affected by cognitive emotion regulation. By training the emotions of high school male students their performance get better and cope with the challenges. Keywords: Emotion regulation, high school students, male