Data has become a crucial element in contemporary social development,yet there is currently no unified global rule for cross-border data flow.Against this backdrop,the United States and the European Union have successively established"outward interference"and"inward protection"extraterritorial application systems for data laws to strengthen their regulatory power over cyberspace.This move raises concerns about the potential abuse of the extraterritorial effect of data laws,increasing the risk of passive data openness for various countries and raising the compliance threshold for global business operations.As a major digital industry nation,China should also strengthen its data legislation and construct a"proactive response"extraterritorial application system for data laws.This system should align with the inward requirements of the domestic digital market development while also considering the outward needs of internet enterprises going global.It should promote the reasonable and moderate extension of the extraterritorial effect of China's data laws and improve the blocking mechanisms against the improper extraterritorial application of foreign data laws,aiming to explore a Chinese paradigm for global data governance.