The work aims to explore the design criteria of the recyclable express package, to achieve the goal of shared and green express. Through the relevant analysis on the existing national industrial standards and shared bike model, the advantages of sharing were specified combined with the entropy increase theory of the second law of thermodynamics. Then, the product interaction was analyzed based on the human factors engineering to derive the basic design requirements of relevant recyclable express sharing. A recyclable express package was designed. The package was improved from the perspective of man-machine interaction on the recyclable basis, to achieve the environmental protection of the express package. Through the research on product standardization, size systematization, interactive humanization and modular combination, a recyclable express package is designed, which also can be called shared express to some extent.