Attempting to experiment with tea leftovers to explore its sustainable design possibilities in the field of tea packaging.Firstly,the root causes of the problem of excessive packaging are discussed;secondly,the problem is analyzed through the introduction of sustainable design concepts,and design ideas are provided by excellent sustainable case studies;finally,material experiments and design practices are carried out from a multidisciplinary perspective.The tea leftovers packaging design practice subverts the common tea packaging forms from the material itself,providing people with a new consumption concept and a new understanding of tea culture with a more humanistic and green environmental design language.