In recent years,the Internet has penetrated in various industries and spread to all comers of the world.As a product of the combination of the Internet and traditional international trade,cross-border e-commerce has gradually become an important manifestation of today's international trade and promoted the growth of the international economy,but the various problems arising from the operation of cross-border e-commerce hinder its healthy development.Blockchain technology,as a derivative of Internet technology in the context of digital economy,will provide important help to the innovation of the development path of cross-border e-commerce in China.Based on the analysis of the current situation of China's cross-border e-commerce,this paper finds that there are three major problems of cross-border commodity quality,cross-border logistics and cross-border payment,and then explores the innovation and development of China's cross-border e-commerce by combining the characteristics of blockchain technology.The characteristics of blockchain technology can be optimized and innovated to provide strong support for the continuous growth of China's cross-border e-commerce.