LDBC (Logistics data block chain) is a fusion of the Internet of Things theory and blockchain technology, and is committed to creating a big data blockchain that connects everything. The traditional IoT operating platform adopts centralized technology, and it is based on the premise that any party participating in the IoT is responsible for both data collection and operation. The slow development of the trust mechanism has seriously hindered the development of the IoT market. In response to the problems that arise in the process of the Internet of Things, the IoT Chain focuses on the data acquisition, data concurrency, and data coexistence problems faced by the application of blockchain technology to the Internet of Things industry, and combines blockchain-Internet of Things-big data to build a new generation of The architecture of the Internet of Things is mainly used in the logistics industry.