Project-Based Learning (PBL) is a teaching method in which a student gains knowledge and skills by working for an extended period of time to investigate and respond to an authentic project, engaging in complex questions, problems, or challenges. The PBL for sustainability management course was designed to achieve the student learning outcomes and to help develop skills such as critical thinking, problem solving, communication, collaboration, and self-management. The project features a real-problem in an Orang Asli Settlement at Pos Kuala Mu, Perak. The challenge for the students is to propose sustainable eco-tourism activities and at the same time conserve and uphold the traditional knowledge and Orang Asli heritage. The target of this project is to increase the income of the Orang Asli and thus improve their economic sustainability. Students were engaged in a rigorous, extended process of asking questions, finding resources, applying their knowledge and gathering information. The project was successfully implemented and can be concluded that implementation of PBL in sustainability management course for postgraduate students achieved the course outcomes and the programmes outcomes.