Last week, China Water Transport News published an article "Blockchain ignites the passion for digital shipping innovation and development". The article mentioned that the shipping industry should be one of the most suitable areas for blockchain applications. The shipping industry is essentially an industry that conducts business around "ships" and "cargo", which determines that the actual business operations of the shipping industry will always be in the "offline" physical world. When we want to use digital means such as e-commerce or blockchain to transform the shipping industry and move the business flow, capital flow and information flow involved in the business to "online", "online" and "offline" The problem of consistency has become an unavoidable issue that must be faced. Blockchain can theoretically solve the business collaboration and information exchange between upstream and downstream enterprises. The application of the blockchain is based on the premise that the shipping industry has a better shipping Internet and the Internet of Shipping. The Internet of Things, the Internet, and the blockchain are technologies that have developed in parallel, and they are more complementary.