In the era of digital finance, the innovation of financial technology cannot be separated from the crossborder flow of financial data, and this has led to the issue of regulating the cross-border flow of financial data through international trade law rules. The cross-border flow of financial data has long been subject to trade law regulations and has gradually become prominent in recent years. Currently, the international community has formed various development models for regulating the cross-border flow of financial data through international trade laws, such as the EU’s privacy protection priority restrictive flow model, the United States’ economic interest priority free flow model, and China’s sovereignty and security priority prudent application model. However, this difference does not prevent free trade agreements between countries or regions to regulate crossborder flow of financial data from providing provisions such as the cross-border flow of financial data under ordinary course of business, the exceptions to cross-border flow of financial data and data storage localization. In this context, in order to promote the formation of multilateral trade rules for financial data, China can seek common ground while reserving differences in the concept of cross-border trade in financial data, actively absorb international rules in formulating trade provisions for cross-border flow of financial data, and strengthening cooperation between countries.