This paper discusses the preservation behavior of participants in the perishable products supply chain by modeling two preservation methods, ecological preservation, and traditional preservation, and listing eight combinations of preservation strategies under non-cooperation and cooperation. We grey-quantize indescribable preservation efforts to establish grey interval functions of profits under different situations from three perspectives to obtain optimal decision-making, and then make conclusions through numerical analysis: (1) in the view of grower profits-oriented, cooperative preservation is always the best choice, which is completely contrary to the marketing side perspective; (2) making more efforts to preserve products doesn’t always bring high profits;(3) in most cases, ‘cooperation’ and ‘ecological preservation’ are relatively beneficial. This paper provides some enlightenment on choosing the most suitable preservation methods and efforts to better coordinate the relationships among the perishable products supply chain.