科技的進步使得資源消耗劇增，因此資源的不可續用性會導致資源短缺、碳排放增加等環境惡化後果，如何在生產的過程中進行產品的回收再利用成了企業正在探索的方向，在傳統的供應鏈上增加逆向物流所形成的閉環供應鏈，探討著產品從顧客手中回到供應鏈體系內的問題，能有效的降低企業成本與資源重複利用率，因應此種更加複雜的供應鏈網路中的資料交換方式，供應鏈的電子化顯得更加的重要，其中如何因應電子化下帶來的企業間資料隱私問題，並確保資料的可靠性，則成了需要研究的議題。
區塊鏈技術從力求去中心化的電子加密貨幣，演變出能符合商業需求的分散式資料庫，其中十分重要的即為能自動執行程式內容的智能合約技術，使應用於供應鏈領域的區塊鏈系統，更加具備隱私性、可靠性、透明性、不可竄改性，讓企業間能有更強的信任關係。
本研究將以汽車產業的閉環供應鏈為例，運用IBM公司所主導發展的開源區塊鏈技術—超級帳本(Hyperledger)中的提供分散式作業系統的許可制區塊鏈(Fabric)來進行系統的建置，開發出符合汽車產業之閉環供應鏈所需求的智能合約，藉由智能合約來進行企業間的資訊交換，達成企業間資訊保有隱私的同時又能共享指定的可靠數據，提供企業在協議或單方決定的狀況下修改智能合約參數之功能，並探討採用區塊鏈系統之閉環供應鏈的應用場景。

The advancement of science and technology has led to a sharp decrease in available resources. Thus, determining how to recycle and reuse products in the production process has become a direction that companies are exploring. The closed-loop supply chain faces the problem of products returning from customers to the supply chain system, where enterprise costs and duplication of resources can be effectively reduced through digitization. However, dealing with the data privacy issues between enterprises brought about by digitization and ensuring access to reliable data is an important potential research topic.
In this study, a closed-loop supply chain demonstration in the automotive industry using Hyperledger Fabric, an open-source blockchain technology led by IBM, is used to build a data exchange system. Smart contracts that meet the needs of the closed-loop supply chain in the automotive industry are developed that can secure. Private information passing between enterprises and specify reliable data at the same time, in turn leading to agreements or unilateral decisions and may involve modifying the function of smart contract parameters.

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