Cross-border e-commerce is also facing the problems of cross-border goods selling counterfeit, long delivery time of cross-border logistics, and high cross-border payment fee in the process of development. Blockchain technology, with its characteristics of high trustworthiness, traceability, and information immutability, can be applied to the field of cross-border e-commerce, providing a new direction for cross-border e-commerce to solve these problems. At the present stage, scholars at home and abroad mainly study how blockchain technology is applied in cross-border e-commerce, explore the specific mode of combining blockchain technology with cross-border e-commerce, and lay the theoretical foundation for the application of blockchain technology in cross-border e-commerce, while less research is conducted on the application effect of blockchain technology in cross-border e-commerce. Based on this, this paper researches the influence mechanism of the application of blockchain technology in cross-border e-commerce on consumers’ willingness to purchase, explains the current situation of the application of blockchain technology in various fields of cross-border e-commerce, and on this basis, divides the quality of the blockchain system of cross-border e-commerce into three dimensions of commodity information quality, logistics service quality, and payment security.