AbstrakSelf-medication atau pengobatan mandiri merupakan praktik umum di kalangan pelajar, namun pemanfaatan obat tradisional masih terbatas akibat kurangnya edukasi terkait manfaat dan penggunaannya. Indonesia memiliki kekayaan biodiversitas dan pengetahuan tradisional yang melimpah, yang berpotensi besar untuk dikembangkan sebagai sumber obat tradisional. Meskipun regulasi terkait obat tradisional di Indonesia sudah baik, diperlukan penelitian lebih lanjut untuk memastikan efektivitas dan keamanan penggunaannya dalam pengobatan mandiri. Penelitian ini bertujuan untuk meningkatkan pengetahuan siswa SMK Kesehatan mengenai manfaat, jenis, dan penggunaan tanaman obat tradisional dalam praktik self-medication. Metode yang digunakan meliputi pre-test, edukasi melalui presentasi, video, flyer, diskusi, dan post-test untuk mengukur peningkatan pemahaman siswa. Hasil pre-test menunjukkan distribusi nilai dengan skor tertinggi 90 dan terendah 50, sedangkan hasil post-test menunjukkan peningkatan signifikan dengan skor tertinggi mencapai 100. Rata-rata skor pre-test adalah 70,4 dan rata-rata skor post-test meningkat menjadi 96,8; mencerminkan peningkatan pengetahuan sebesar 27,4%. Evaluasi kegiatan menunjukkan kepuasan tinggi dari peserta terkait metode penyampaian dan relevansi materi. Hasil menunjukkan bahwa edukasi tentang tanaman obat tradisional efektif dalam meningkatkan pengetahuan siswa dan diharapkan dapat mendorong praktik self-medication yang bijak dan bertanggung jawab di kalangan siswa SMK Kesehatan. Kata kunci: pengobatan mandiri; obat tradisional; edukasi; pelajar; SMK AbstractSelf-medication is a common practice among students, but the utilization of traditional medicine is still limited due to lack of education regarding its benefits and uses. Indonesia has an abundance of biodiversity and traditional knowledge, which has great potential to be developed as a source of traditional medicine. Although regulations related to traditional medicine in Indonesia are good, further research is needed to ensure the effectiveness and safety of its use in self-medication. This study aims to improve the knowledge of vocational health students regarding the benefits, types, and uses of traditional medicinal plants in self-medication practices. The methods used include pre-test, education through presentations, videos, flyers, discussions, and post-test to measure the improvement of students' understanding. The pre-test results showed a distribution of values with the highest score of 90 and the lowest score of 50, while the post-test results showed significant improvement with the highest score reaching 100. The average pre-test score was 70.4 and the average post-test score increased to 96.8, reflecting a 27.4% increase in knowledge. Evaluation of the activity showed high satisfaction from participants regarding the delivery method and relevance of the material. The results show that education about traditional medicinal plants is effective in improving students' knowledge and is expected to encourage wise and responsible self-medication practices among vocational health students. Keywords: self-medication; traditional medicine; education; students; vocational schools