This paper studies on the principles, methods and application of eco-design, which is the main tool for the sustainable development. Because the eco-design covers a broad srectra of academic disciplines and practical fields, at first, this paper had to choose some mature fields such as products eco-design, architecture eco-design, city eco-design and landscape eco-design to learn their experiences and then to start own study.
Based on the process, this paper sums up the key principles from literat...