This paper examines the necessity of introducing a blockchain bill of lading to solve the crisis of B/L in international trade, and reviews the main tasks related to the use of blockchain B/L. If we apply blockchain technology to B/L in international trade, it can improve the issue and the transfer process of B/L and solve the B/L’s crisis problems. In particular, we can manage transparently and efficiently B/L, prevent fraud due to forgery or alteration of documents, and reduce transaction costs. However, there are also challenges to be solved to utilize the blockchain B/L. It must ensure interoperability between blockchain B/L platforms and compatibility with global trading platforms and prepare legal regulations to govern blockchain B/L. And It has to solve the issues related to the application of smart contracts, and security-related problems remain.