In the digital age， the platform economy has become an important engine for global economic growth.Countries and regions around the world attach great importance to the construction of international rules for digital platform governance.The European Union is consciously promoting the legislative process of digital platform governance rules，hoping to export its digital platform governance rules through the Digital Services Act and its "Brussels Effect" to seize the right to formulate global digital platform governance rules and then build and maintain its "digital sovereignty".In the field of digital platform governance， the European Union can basically meet the formation conditions of the "Brussels Effect" such as market size and regulatory capacity，rules，goals and standards.The EU Digital Services Act may form a "de facto Brussels Effect" due to the commercial needs of platforms，and may also form a "legal Brussels Effect" due to the regulatory goals or development needs of other jurisdictions.In the context of the global digital platform governance game，China is both a large platform market country and a platform exporting home country，and it is difficult to stay aloof.We should view the EU Digital Services Act and its "Brussels Effect" dialectically，actively improve China''s domestic digital platform governance rules，and promote global governance cooperation and rule-making for digital platforms.