文章立足“一带一路”框架下国际投资风险加剧与传统救济机制滞后的现实，探索运用区块链重构国际投资风险防控机制的有效路径。区块链的分布式账本、智能合约、信息安全透明等特性，有助于重构国际投资风险防控机制：通过构建可信数据平台弥合信息鸿沟，实现风险精准预警；借助智能合约自动执行契约条款，从源头降低履约风险；依托链上仲裁固化证据、兼容多法系规则，提升救济效率与公正性。借鉴国内成功案例，在尊重国家主权前提下，可建设多法系联盟仲裁链，部署全周期链上存证与自动化风险控制合约，构建“主权-技术”平衡的法律监管框架，为“一带一路”框架下国际投资风险防控提供数字化解决方案。

Based on the current challenges of intensified international investment risks and the lagging traditional relief mechanisms under the framework of the Belt and Road Initiative, this paper explores the effective path of reconstructing the international investment risk prevention and control mechanism by applying blockchain technology. The distributed ledger, smart contracts, and information security and transparency features of blockchain can help to reconstruct the international investment risk prevention and control mechanism: by building a trusted data platform to bridge the information gap and achieve precise risk early warning; by using smart contracts to automatically execute contract terms and reduce the risk of performance from the source; and by applying on-chain arbitration to solidify evidence and accommodate multi-jurisdictional rules, thereby enhancing the efficiency and fairness of relief. Drawing on successful domestic cases, under the premise of respecting national sovereignty, a multi-jurisdictional alliance arbitration chain can be established, with the deployment of full-cycle on-chain evidence preservation and automated risk control contracts, to construct a "sovereignty-technology" balanced legal supervision framework, providing a digital solution for international investment risk prevention and control under the framework of the Belt and Road Initiative.