Abstarct: In recent decade, the design of reverse logistic networks and especially its integration with direct logistic networks have been paid attention in order to meet the economic, environmental and social needs. Companies are under pressure from the government and customers for considering environmental effects and some studies have been done about the design of the green supply chain. The extent and variety of the topics have created numerous discussions with the same heading. The supply chain is a system which the producers, namely, suppliers of raw materials, processes of production, distributors of products and customers are connected to each other by a flow of materials on one side and a flow of information on the other side. Reverse logistic is brought up when the process of returning product to the supply chain is considered. This process involves the period between delivery goods from the customer to return goods to the customer. Collecting recursive products, inspection, making decisions about the amount of minor or fundamental required repairs and at the end, recycling products as raw materials are some activities which are studied in reverse logistic. In this thesis, the design and planning of a logistic network of green closed multi-product and single-cycle loop will be investigated which involve two main dimensions of permanent development dimensions, the economic dimension and environmental dimension. In aspect of environmental dimension, the amount of greenhouse gases emissions is considered in the production, recycling and transportation processes in the supply chain. A planning model has been developed for this issue, and its application in designing a chain has been studied in Tehran for the sake of producing polystyrene and recycling polystyrene. The two-stage definitive planning has been used for mathematical modeling of the problem. Decisions at the first stage (which are strategic decisions) include finding the place of distribution centers, recycling and technologies centers, the amount of purchasing raw and recycled materials, the amount of stock in storages and etc. Decisions at the second stage include tactical decisions such as transportation in each period and baxsed on each scenario. Eventually, the results of this research will lead to managerial insights in this field.