Students' low understanding of plant anatomy material in science and mathematics education is influenced by the limitations of learning media that are not contextual and do not integrate local wisdom, resulting in low student engagement in learning. This study aims to develop a digital encyclopedia-based media based on the local wisdom of Tumpek Wariga that is suitable and effective for use in IPAS learning in the fourth grade of elementary school. This study is a development study using the ADDIE model, which includes the stages of analysis, design, development, implementation, and evaluation. The test subjects involved design experts, content/material experts, learning design experts, learning media experts, as well as students in individual and small group tests, with effectiveness tests on 18 students. Data were collected through observation, interviews, questionnaires, and learning outcome tests, and subsequently analyzed using descriptive quantitative and inferential statistical approaches. The findings indicate that the developed media achieved excellent validation across all expert assessments and received highly positive responses from students during individual and small-group evaluations. Furthermore, the implementation of the media led to a substantial improvement in students’ learning outcomes, supported by inferential statistical analysis demonstrating a significant difference between pre- and post-intervention performance. Therefore, the Tumpek Wariga-based digital encyclopedia is deemed both feasible and effective in enhancing students’ understanding of plant structure. The study highlights the significance of integrating local wisdom into digital learning media to emphasizing the importance of teacher readiness and institutional support in optimizing the use of technology-driven educational innovations.