Study on the Supplier Evaluation in Green Supply Chain Based on Rough Sets Theory and Analytic Hierarchy Process

The process of choosing green suppliers is to choose and breed the enterprises which posses the awareness of environmental protection and pose great importance to environmental protection, and then publish strategic cooperation partnership with them to form a green supply chain. The paper firstly proposed a new construction method of the judgment matrix in analytic hierarchy process (AHP) based on rough sets theory, and then built a supplier evaluation index system in green supply chain, and lastly applied the new method in the supplier comprehensive evaluation according to examples.