This paper aims to analyze product life cycle, introduce green design concept and integrate it into product design so as to establish feasibility path combining with China’s national condition. Through case analysis, five green design principles of green co-creation, material reduction, green packaging, material replacement and design from identical material were summarized according to the five attributes of figment, product, commodity, article and waste. The whole process was analyzed with the case of indigo T-shirt. The five design principles can provide guidance for all aspects of the product, ensure the sustainability of the product, realize the optimization and upgrading of the product and achieve the goal of carbon peak and carbon neutrality.