時尚產業因商家的商業策略以及消費者的盲目消費，現已成爲了世界第二大的污染產業，時尚產業在整個運作過程中都包含著大量對資源的攝取和環境污染。而舊衣和剩餘、廢棄的紡織物都是在過往被人們詬病、忽視及遺忘的！舊衣與廢棄紡織物問題處理不當，勢必會對生態環境產生影響和破壞。合理的使用，正確的回收及設計，循環是當今社會尋求永續必然的出路。本研究的研究目的則是希望透過相關理論的探討、回顧以及利用搖籃到搖籃（Cradle to Cradle）的概念為發展基礎，以行動研究的取向，通過身體力行地回收及分類結合時尚產業永續循環過程中的設計端出發，總結出有效的回收舊衣分類方法及相對應的設計方法，並希望透過這有效之永續時尚設計方法，可以進行推廣應用和教育普及，使更多人可以參與其中，改變未來衣櫃與環境的循環方式以及人們對永續時尚設計的思考，從而使永續時尚設計可以改善當下環保問題。

The fashion industry due to the merchant's business strategy and consumer consumption blindly, has now become the world's second-largest pollution industry, fashion industry in the whole process contains a large intake of resources and environmental pollution, and fabric of the old clothes and remaining, abandoned is criticized by people in the past, ignore and forget, old clothes and improper handling waste fabric problem, It is bound to affect and destroy the ecological environment. Properly used, properly recycled and properly designed, recycling is the inevitable way to seek sustainability in today's society. The purpose of this study is to explore and review relevant theories, and to take the concept of Cradle to Cradle as the development basis, with the orientation of action research, to start from the design side in the sustainable cycle process of fashion industry through physical recycling and classification. Summed up the effective recycling old clothes classification method and the corresponding design method, and hope that through this effective sustainable fashion design method and can be popularized and the education popularization, the more people can participate, change the way the future cycles of wardrobe and environment as well as the change of sustainable fashion design thinking, so that the sustainable fashion design can effectively improve the current environmental problems.