Abstract: In the period of digital transformation, Tianjins agricultural product supply chain frequently experiences issues such as unstable cooperative relationships between main entities in the chain, high default rates, and high safety and quality risks. Incomplete contracts and uncontrolled trust expose them to the risk of failure of governance mechanisms in solving opportunistic problems. This study analyzes the connotation and characteristics of the traditional governance mechanism and the new governance mechanism of blockchain, and elaborates on the mechanism of blockchain in the traditional governance mechanism. This study also finds that the adopted governance model varies in different development stages, showing the development path from information exchange governance to behavior coordination and relationship coordination governance, coexisting with deep cooperation governance. This research provides inspiration for the governance practice of agricultural product supply chain in the period of digital transformation, and it helps the supply chain to improve the functional architecture and system design of the blockchain system in order to implement the application of a new generation of information technology in the field of agricultural product supply chain.

Key words: agricultural product supply chain, traditional governance mechanism, blockchain technology, governance model

摘要： 处于数字化转型时期的天津农产品供应链在运营过程中频繁涉及到链上主体合作关系不稳定、违约率高、安全质量风险较大等问题，契约不完备性和信任失控使供应链在解决机会主义问题时面临治理机制失效的风险。在对传统治理机制和区块链新型治理机制内涵特性进行剖析的基础上，阐述区块链与传统治理机制的关系机理，并发现在不同发展阶段的不同治理情境下，采取的治理模式呈现出从信息交流型治理到行为协调型治理与关系协调型治理共存再到深度合作型治理的发展趋势。为数字化转型时期的农产品供应链的治理实践提供启示，有助于农产品供应链完善区块链系统的功能架构和系统设计，以便新一代信息技术在农产品供应链领域的应用落地。

关键词: 农产品供应链, 传统治理机制, 区块链技术, 治理模式