With the increasing value of data and the growing power in the field of digital economy, China has taken the governance of cross-border data flow(CBDF) as an important national strategy. At the domestic policy level, China has piloted Beijing, Shanghai, Hainan and Xiongan New Area to create international data centers with the intention to control inbound and outbound data resources. At the domestic legislative level, China insists that the outbound data transfers be conducted in a secure environment. At the international cooperation level, on the basis of the Global Data Security Initiative, China builds the consensus of countries and promotes cooperation among countries along the Belt and Road routes on CBDF through the Digital Silk Road. Simultaneously, China will engage proactively in the newly international economic and trade agreements, with RCEP standing as a prime example. China’s discourse and model on CBDF governance have been continuously enhanced.