There is a correlation between design ecology and ecological design, but the former belongs to a broader scope of design ethics issues. The design ecology advocates that under the guidance of the concept of sustainable development, through design education and social education with design ethics as the core, man can improve the unbalanced development of design in the commercial society constructed by modern technology for a long time, so that human and nature coexist harmoniously through the positive role of design. It also advocates taking problem awareness as the starting point, and creating a more reasonable material life and spiritual lifestyle for mankind through the coexistence of high technology and low technology, and the symbiosis of globalization and localization. This article discusses the importance of design ecology in the current society from the three dimensions of design ethics, citizenship and sustainable development.