With the development of China's coal mining industry technology, many problems of coal machine equipment manufacturing industry have been exposed. Aiming at the problems of information island, information asymmetry and low business flow efficiency of all participants in the supply chain of coal machinery equipment manufacturing under the traditional mode, a multi-chain structure of coal machinery equipment supply chain information management platform based on blockchain technology was proposed. Connect suppliers in the supply chain, manufacturing and remanufacturers, coal mining companies, and regulators and financial institutions. The platform technology architecture suitable for the supply chain of coal machine equipment is designed, the master-slave multi-chain network structure is built to simulate the supply chain of coal machine equipment and the throughput and storage performance are tested, and the practical advantages of blockchain technology in the field of coal machine equipment manufacturing are discussed, which provides a new direction for the integration of coal machine manufacturing and a new generation of information technology.