Background: Depression is a mood disorder characterized by sadness that lasts for a long time and disturbs the function of life. Adolescence comes from the Latin word adolecer, which means growing up at the age of 12 to 15, which has not reached a stable level, the beginning of the search for identity and situations in which it is necessary to be able to adapt. This study aims to determine the effectiveness of stress management module training to reduce the level of depression in early adolescents. Research method: Using the design of a group before the test after the test with the type of quasi-experimental control group design performed on 36 students in SMP N 4 Yogyakarta. And the CERDAS (Cendekiawan muda bersama wujudkan Indonesia sehat) management stress module used as a reference for research. Determination of the depression level with the Children's Depression Inventory (CDI). Research Results: Depressed-class students were 7 people (19.44%) while the non-depressive category was 29 students (80.56%) out of 36 students. After the bivariate test in the control group, p = 0.059 (p> 0.05), which did not differ before and after exercise. In the intervention group, the results were p = 0.001 (p <0.05), which gave differences before and after exercise. Conclusion: Training in stress management modules proved effective in reducing depression in early adolescents. Suggestion: For other researchers, it would be better if, in addition to the stress management module, further studies were done to deal with depression with more samples and longer time.