This study incorporates the concept of a green supply chain into corporate operational goals to reduce resource waste. Therefore, based on this concept, this paper proposes a green-closed supply chain integration operation model, and integrates the manufacturing supply chain and the reverse logistics chain to form a closed supply chain, that is, the reverse supply chain for recycling used products is the same path as the manufacturing supply chain; The reverse chain is mainly to recycle the

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... nd-hand products of customers and re-manufacture, and also consider the quality of second-hand products to explore its impact on the entire model. In the post-adjusted model of the second-hand raw material re-production rate (k), the sensitivity analysis of the impact of government subsidies and second-hand product recovery rate on net income is analyzed, and it is known that when government subsidies increase, the net income of the supply chain will increase accordingly, and when the recovery rate of second-hand products increases, its net income will also increase.