Beidou Chain is a public, underlying blockchain framework. As a representative of third-generation blockchain technology, it positions itself as an enterprise-level blockchain development and application platform. It innovatively introduces the concept of a "transaction engine," providing businesses with blockchain middleware products that meet the needs of large-scale, mainstream commercial applications. Beidou Chains research and development primarily focuses on integrating blockchain with the Internet of Things (IoT) and blockchain storage solutions, and it can also offer Blockchain-as-a-Service (BaaS) to enterprises.