Learning media in the form of e-modules is one of the most important indicators in achieving effective and efficient learning objectives, especially in learning the Tarung Derajat martial arts. Therefore, this study aims to develop digital-based e-modules in Tarung Derajat martial arts learning at the basic level. The design used is research and development with the aim of producing and testing product effectiveness. The development stage consists of product design, product testing, and product implementation. The designed product contains covers, prefaces, menus for e-modules, instructions for use, course descriptions, learning outcomes, operational learning outcomes, learning materials, learning videos, summaries, evaluation questions, scoring systems, and lists of references. Then it was validated by 3 competent experts in their fields, namely material experts, media experts, and curriculum experts. After the product was declared feasible, field implementation was continued with 120 students and 4 lecturers who taught the Tarung Derajat martial arts course at the Faculty of Sports Science, Padang State University, Indonesia. The criteria for participants are students who take Tarung Derajat martial arts courses at the basic level and an average age of 20.3 years. Evaluation of product feasibility and effectiveness was obtained through a questionnaire, then analyzed using percentages. The results showed that the average validation of experts was 89.44 or very good category. Furthermore, the average result of field implementation is 89.34 or very good category. In conclusion, digital-based e-modules are effectively used in Tarung Derajat martial arts learning at the basic level. This product is expected to be useful for lecturers (teaching staff), Tarung Derajat martial arts trainers, and sports students to make it easier for them to achieve effective and efficient learning. Future research is needed at the level of specialization, sample size and sample diversity (athlete level), experts, and more refined design and appearance.