This study aims to explore the curriculum design and implementation process of Global Learning for Sustainable Development (GLSD), as well as students’ learning experiences and the instructional effectiveness of such a curriculum. Action research was adopted, and a 20-week instructional program was designed and implemented for gifted students in an elementary school in Taipei. The curriculum content was based on the Sustainable Development Goals (SDGs) and integrated instructional strategies such as situational simulations, role-playing, and cooperative learning. Both qualitative and quantitative data were collected and analyzed through student statements, question sheets, self-assessment forms, and teacher evaluations. The results showed that students were able to grasp the fundamental meanings of major global issues and explore the connections between Taiwan and international topics. In addition, students demonstrated empathy when facing global dilemmas and developed a sense of responsibility toward sustainable development. Finally, the study offers relevant suggestions for schools and teachers as a reference for implementing global education for sustainable development.