SEOR is a general data protocol platform that provides unified off-chain data for different blockchain systems. Through a decentralized unified protocol and on-chain governance, it provides accurate data for various DeFi applications with different architectures, different technologies, and main chain projects. The technical feature of SEOR is that it adopts a hierarchical and modular microservice architecture to split the oracle network into a multi-layer three-dimensional network. Through light-weight blockchain, pre-micro oracle, trusted data repository, decentralized on-chain governance and other technologies, to support of Oracle data, and realize the efficient data collection and access, flexible and convenient Scalability, and cut down the costs. Seal-Oracle empowers users and enable their projects with advanced blockchain and smart contract technologies. Seal-Oracle provides a modular and flexible blockchain technology platform that enables developers, entrepreneurs, enterprises, and individuals to quickly adopt and realize blockchain and smart contract technologies. Together these communities will help form a new era in blockchain and a new economic ecosystem.