The primal purpose of this paper is twofold: to ascertain the facts for product design for remanufacturing and to quantitative assess the product design method. This first requires an analysis of product design that facilitates remanufacture. Insights on how to design products for ease of remanufacture were obtained from lots of details of the whole remanufacture process. Furthermore, comparing design for remanufacturing to classic design-for-x indicated that they have some similarities and conflicts. And a further assessment model and method based on the remanufacturing process were put forward, which comprehensive quantitative assess product design for remanufacturing. Finally, we conclude that it is important that the design requirements explicitly address remanufacturing process, and the evaluation model have enough potential to justify products design for remanufacturing.