Abstract: While promoting the sharing of global data resources, the crossborder data flow will inevitably threaten data sovereignty and national security. The competition for the right to speak in international data with crossborder data flow governance as the game will become the focus of competition in the international community in the future. This paper introduces the background knowledge and constraints of crossborder data flow, investigates and compares the crossborder data flow governance models of the United States, the European Union, Russia, Japan, and Australia, and analyzes the current policy status and challenges of crossborder data flow governance in our country, on this basis, countermeasures and suggestions are proposed for the governance of crossborder data flow in our country from the perspective of data sovereignty, including promoting the classification supervision of crossborder data flow, innovating and developing crossborder data flow governance models, improving countermeasures against extraterritorial “longarm jurisdiction”, and actively participating in and leading the formulation of international governance rules.

Key words: crossborder data flow, data sovereignty, national security, governance rules, supervision

摘要： 跨境数据流动在推动全球数据资源共享的同时也不可避免地威胁着数据主权与国家安全，以跨境数据流动治理为博弈点的国际数据话语权的争夺将成为未来国际社会竞争的重点.介绍了跨境数据流动的背景知识和制约因素，调研并比较了美国、欧盟、俄罗斯、日本、澳大利亚等国家和组织的跨境数据流动治理模式，分析了我国当前跨境数据流动治理的政策现状以及面临的挑战，在此基础上，从推进跨境数据流动分级分类监管、创新发展跨境数据流动治理模式、完善应对域外“长臂管辖”的反制措施、积极参与并主导国际治理规则制定等方面，对我国数据主权视角下的跨境数据流动治理提出对策建议.

关键词: 跨境数据流动, 数据主权, 国家安全, 治理规则, 监管