Abstrak: Perubahan iklim dan meningkatnya pencemaran lingkungan menuntut adanya pendidikan green economy dan kewirausahaan hijau untuk membentuk generasi yang peduli keberlanjutan. SMA Katolik Sint Carolus Penfui Kupang menghadapi tantangan rendahnya pemahaman siswa terhadap konsep tersebut, yang belum terintegrasi secara optimal dalam kurikulum. Program pengabdian masyarakat ini bertujuan meningkatkan pengetahuan dan keterampilan siswa dalam pengelolaan sumber daya berkelanjutan serta pengembangan ide usaha ramah lingkungan. Kegiatan dilaksanakan melalui sosialisasi, edukasi, dan diskusi interaktif, melibatkan 4 guru dan 40 siswa sebagai peserta. Evaluasi dilakukan melalui observasi, pre-test, post-test, dan wawancara. Hasil menunjukkan adanya peningkatan pemahaman siswa hingga 80% tentang konsep green economy dan kewirausahaan hijau, serta keterlibatan aktif dalam diskusi. Program ini tidak hanya meningkatkan kesadaran lingkungan, tetapi juga membangun karakter, kreativitas, dan potensi kewirausahaan siswa untuk mendukung ekonomi lokal berkelanjutan. Guru dan pihak sekolah menilai kegiatan ini relevan dengan pendidikan karakter masa kini dan berpotensi menjadi langkah awal integrasi tema keberlanjutan ke dalam pembelajaran sekolah.Abstract: Climate change and increasing environmental pollution demand the integration of green economy and green entrepreneurship education to shape a generation that is committed to sustainability. SMA Katolik Sint Carolus Penfui Kupang faces the challenge of low student understanding of these concepts, which have not yet been optimally integrated into the curriculum. This community service program aims to enhance students’ knowledge and skills in sustainable resource management and the development of environmentally friendly business ideas. The activities were conducted through socialization, education, and interactive discussions, involving 4 teachers and 40 students as participants. Evaluation was carried out through observation, pre-tests, post-tests, and interviews. The results showed an improvement of up to 80% in students’ understanding of green economy and green entrepreneurship concepts, along with active engagement in discussions. The program not only raised environmental awareness but also fostered character building, creativity, and entrepreneurial potential to support a sustainable local economy. Teachers and school representatives assessed the program as relevant to current character education challenges and a potential starting point for integrating sustainability themes into the school curriculum.