早期供應鏈廠商為了確保自家的商業機密不會遭到外洩，交易記錄採用紙本作業的方式進行，也產生了保存不易以及人為疏失等問題。後來，因應紙本數位化之潮流，各家廠商紛紛採用客製化的電子系統來管理及記錄交易資訊，不但解決了資料保存不易的問題，也提升了整體作業效率。即便如此，從整體供應鏈來看，傳統供應鏈仍舊因其為中心化的管理方式，存在著資訊傳遞效率低、溝通成本高、資訊不對稱和資訊不透明等問題，甚至還有資訊被篡改的風險。
然而，近幾年區塊鏈技術之興起，憑藉著去中心化的機制特性，為供應鏈管理帶來了新的契機。有鑑於此，本研究提出了一個基於區塊鏈之供應鏈網路框架設計，結合智慧合約，為供應鏈管理提供一般性框架作使用。該框架可以讓供應鏈管理達到交易透明化、交易來源隱匿性、節點匿名性、敏感交易機密性以及明文交易可追蹤性之目的。最後，針對常見的資訊安全攻擊，在本研究的安全分析章節也有討論本框架之設計如何能夠抵禦這些資安威脅。

The supply chain connects multiple entities such as vendors, distributors and retailers. In order to ensure that the sensitive business information would not be leaked, the early supply chain companies used paper-based transaction records, which caused problems such as difficult records preservation and human error. Later, for the trend of digitization, much companies have adopted customized electronic systems to manage and record transaction information, which not only solved the problem of data storage, but also improved operating efficiency. Nevertheless, from the perspective of the supply chain, the traditional supply chain still suffers from low information transmission efficiency, high communication costs, information asymmetry and information transparency due to the centralized management, and even information has been tampered.
However, the rise of blockchain technology in recent years has brought new opportunities for supply chain management due to the decentralized mechanism and immutability. In view of this, this research proposes a design of blockchain-based framework for supply chain network, combined with smart contracts, to provide a general framework for supply chain management. The framework can enable supply chain management to achieve transaction transparency, transaction source unlinkability, blockchain node identity anonymity, confidentiality on sensitive transaction and traceability on plaintext transaction. Finally, for common security attacks, the security analysis chapter of this research also describes how this framework can resist these security threats.

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