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Background: Dysmenorrhea is pain that is felt during menstruation. In Indonesia the estimated incidence of 55% of productive women who experience dysmenorrhea. Risk factors for someone experiencing dysmenorrhea are calcium intake, menstrual duration, age of menarche, and stress level. Objective: To determine the relationship between calcium intake and the incidence of dysmenorrhea in adolescents at Palangkaraya Method: The study design was a case-control with 62 samples. Sampling is done by Proportionate Stratified Random Sampling. Data on sample characteristics, dysmenorrhea events, and risk factors were obtained by interview using a questionnaire and numeric rating scale. Data analysis using Chi-Square Test and Fisher Exact. Results: The results showed that there were (9.7%) students who had sufficient calcium had dysmenorrhea pain, here were (90.3%) who had dysmenorrhea. Chi-Square test results showed students who lack calcium have a risk of 9,664 times experience pain compared to students who have enough calcium (p-value = 0,000). While the results of multivariate analysis showed that the most dominant variable affecting the incidence of dysmenorrhea was calcium intake with a p-value = 0.002; OR = 9,664 (95% CI; 2,305-40,521) and age of menarche with p-value = 0.045; OR = 3,538 (95% CI; 1,026-12,202). Conclusion: Low calcium intake and menarche age influence the incidence of dysmenorrhea among adolescents girls.