体量巨大、类型复杂、价值多元的数据资源是备受全球追捧的战略性创新要素，逐渐成为撬动金融贸易、教育科技、文化军事等全方位增长的全新杠杆，亦在超越地理界域的广泛流转中持续加大国家安全、企业利益和个人权益的风险，致使主要国家和地区陆续限制或禁止跨境数据流动。亟待基于国别维度对比欧盟保守的事前防御、美国积极的事后救济、中国谨慎的全程治理逻辑并延展至区域维度的美式数字同盟、中式数字命运共同体、全球碎片式治理的深度对照，进而勾勒中国总体国家安全观指引下跨境数据安全治理的顶层设计，贯彻发展与安全并重原则，加强跨境数据安全保障能力评估，建立跨境数据集中监管机制，探索完善数据跨境治理规则体系的中国方案，携手全球力量共同构建数字空间命运共同体。

Data resources with huge volumes, complex types, and diverse values are strategic innovation elements. They have gradually become a new lever to incite all-around growth of finance and trade, education and technology, culture and military, etc. They are also continuously increasing risks to national security, corporate interests, and individual rights in the extensive circulation beyond geographical boundaries. It results in countries and regions gradually restricting or prohibiting cross-border data flows. It is urgent to compare the European Union’s conservative prevention in advance, the United States’ active post-relief, China’s cautious whole-process governance logic based on national dimensions and extend to the regional dimension of the United States’ digital alliance, China’s digital community, and the global fragmented governance, so as to outline the top-level design of cross-border data security governance under the guidance of China’s holistic approach to national security. It is important to implement the principle of placing equal emphasis on development and security, strengthen the assessment of cross-border data security capabilities, establish a centralized cross-border data supervision mechanism, explore a Chinese scheme to improve the system of cross-border data governance rules, and jointly build a community with a shared future in the digital space.