Based on the Digital Service Trade Restriction Index（DSTRI），different countries and policy restrictions are compared. The results show that the global digital trade barriers are on the rise，and the digital trade barriers in developed countries are significantly lower than those in developing, countries. The restrictions on digital trade in developed countries are mainly reflected in the policy areas of infrastructure and connectivity，while the restrictions on digital trade in developing countries involve various policy areas. There are many restrictions on digital trade in China. Poor infrastructure and connectivity and other digital trade barriers are important constraints on digital trade in China. Regulatory divergence，market access divergence and fragmentation of regional digital governance are the main causes of global digital trade barriers. China should improve its digital trade development strategy as soon as possible, lay a solid foundation for the development of domestic digital industry，and take a more active attitude to join the regional trade agreement negotiations and WTO plurilateral negotiations on Electronic Commerce, so as to reduce its own digital trade barriers.