Abstract:While cross-border data flow considerably improves the effectiveness of cross-border collaborations,it also faces issues of data sovereignty,national security,conflict of interest,privacy protection and data regulation.It has become a link to the global economy and the center of the game of the new order.First of all,this study analyzes the role of cross-border data flow in economic globalization from the perspective of the economic impact of data elements.It then analyzes the constraints of cross-border data flow in the global context and lists the benefits and drawbacks of China's data element market construction.In the end,based on the practice of China's digital economy development,the study puts forward policy recommendations of better integration of government with effective market,promoting R&D application of digital privacy technologies,playing the role of early and pilot implementation in free trade zones and free port areas,implementing differentiated regulatory policies of classification and grading,initiating multilateral agreements to export Chinese solutions for international data governance,and adhering to systemic thinking to lead the globalization of digital economy.It aims to promote the safe and orderly flow of cross-border data,so that China can better grasp the strategic opportunities in the globalization of digital economy.