With the rapid development of information technology, intelligent logistics has become the development trend of modern logistics industry. As an innovative technology, b aerznm nzn lockchain technology has the characteristics of decentralization, data tamperability and high security, which provides new opportunities for the development of intelligent logistics. This paper first introduces the basic principles and characteristics of blockchain technology, and then analyzes the application scenarios of blockchain technology in intelligent logistics, including logistics tracking, supply chain management and so on. Then, it discusses the key technologies of building intelligent logistics platform based on blockchain technology, such as consensus mechanism. Finally, the advantages and challenges of intelligent logistics application based on blockchain technology are summarized, and the future development trend is prospected.