The current methods of life cycle assessment mainly focus on the impacts evaluation of existing products and detailed design of products, and there is a lack of direct guidance to the green design process. In this paper, a new life cycle design method based on green features is proposed for mechanical and electrical products. Firstly, the concept of green feature is proposed to describe information of green design. Then, through exploration of the mapping relationship between traditional design information and green feature, the information expression model which is easy to extract green features is established. Lastly, the LCA idea is introduced to design process and is combined with green feature, thus the green features in traditional design are identified, selected, classified and aggregated and the green feature-based modeling can be realized. The feedback of rapid life cycle assessment results can be conducted real time and green design is embedded into traditional design, which can improve environmental attributes of mechanical and electrical products. Finally, a case is used to illustrate the application of green feature.
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