Abstract: The transmission efficiency and authenticity of safety information are important factors that affect the cost and management level of coal mine safety management. In order to solve the problems of information islands and opaque information in coal mine safety management, the paper is based on the technical characteristics of blockchain technology such as decentralization and non-tampering, discussed the advantages of blockchain technology in improving the efficiency of safe information transmission and ensuring the accurate transmission of safe information and data. And taking employee safety, equipment safety, environmental safety, and system safety as the entry point, a coal mine safety information management model based on blockchain technology was constructed, which clarified that blockchain technology can achieve employee safety quality evaluation, equipment life-span management, and equipment timely fault recording, monitoring information traceability, timely update of system specifications, etc.