T The prevalence of menstrual disorders was found to be higher in female athletes compared to the ordinary population. Excessive exercise by athletes can interfere with reproductive hormone balance. To prove it, it is necessary to examine the relationship of physical intensity carried out and frequency of exercise, duration of exercise, and type of exercise performed with the menstrual cycle. The study used an observational study with 143 cross-sectional designs in Ragunan School Jakarta as samples. Data was collected by filling out a questionnaire combining the questionnaire made by the researcher about the demographic and menstrual cycle characteristics, as well as the Borg Scale standard questionnaire to obtain data on the intensity of physical exercise. The variables studied were the distribution of sociodemographic characteristics and the relationship between physical exercise intensity, exercise frequency, duration of exercise, and type of exercise with the menstrual cycle. Of 143 athletes or respondents, 40 athletes (28%) experienced menstrual cycle disorders. With the chi-square test, a significant relationship p = 0.000 (p <0.05) was obtained between the intensity of physical exercise and the menstrual cycle. With the same analysis test that was used to determine the relationship of the frequency of exercise with the menstrual cycle, it was found that p = 0.467 (p> 0.05), which means that there is no meaningful relationship. KolomogorovSmirnovz is used to analyze the relationship between the duration of exercise and the type of exercise with the menstrual cycle. The results of the analysis obtained P = 1,000 (p> 0.05) which means that there was no significant relationship between the frequency of exercise and the type of exercise with the menstrual cycle. The intensity of physical exercise and menstrual cycle has a significant relationship (p = 0.000), moderate exercise frequency, duration of exercise, and type of exercise do not have a significant relationship with the menstrual cycle.