「設計思考」是一種以人為本、以原型為導向的創新過程，不僅是一種設計方法，還是一種解決問題的辦法。本文旨在探討可持續產品服務系統的關鍵，評價以設計思考為導向的產品服務系統流程與方法。研究首先探討可持續發展與設計倫理的關係，其次就服務必先「去物質化」的關鍵切入，最後提出以設計思考為導向的產品服務系統流程與方法。

Design Thinking is a people-oriented, prototype driven process for innovation. It is not only a design method, but also a problem-solving method. This paper is aimed at discussing the key of sustainable product service system, and evaluating the process and method of product service system that based on design thinking. First of all, put forward the relationship between sustainable development and design ethics. Secondly, pointed out that service is the key to dematerialization. Finally, put forward the design thinking oriented PSS process and method.