Abstract: Hydrogen energy is a kind of clean green energy, known as the “ultimate energy” for human beings. The key to hydrogen energy lies in hydrogen storage. Among the many hydrogen storage methods, magnesium-based solid-state hydrogen storage has the advantages of high hydrogen storage density, good reversibility, high security, and good environment, which is one of the most promising hydrogen storage materials for large-scale popularization and application. Because of its harsh preparation process and high safety production risk, at present, most of the domestic and foreign research and development institutions use high-pressure gas adsorption apparatus to prepare magnesium-based solid hydrogen storage materials, the batch yield of this equipment is gram level, which can not satisfy the needs of industrialized macro-volume preparation. Industrialized macro-volume preparation equipment development technology index requirements are high, need to strictly control hydrogen embrittlement, hydrogen corrosion, hydrogen leakage, hydrogen explosion, magnesium powder fire, magnesium powder explosion and other safety risks, so the magnesium-based solid-state hydrogen storage material reaction principle analysis, the structure of the equipment components and materials for the detailed design and demonstration, and effective control of high-temperature and high-pressure hydrogen hydrogen embrittlement and hydrogen corrosion of the structural components of the device role of the hydrogen.The development of non-standard special safety devices, inert gas protection and redundant safety interlocking control measures, etc., effectively control the reaction exothermic heat, hydrogen leakage, magnesium-based powder fire and other safety risks. Through the above measures, the safety and reliability of the equipment is ensured, and the reaction requirements for macro preparation of magnesium-based solid-state hydrogen storage materials are met, and the first set of key equipment for macro preparation of magnesium-based solid-state hydrogen storage materials is finally developed and magnesium-based solid-state hydrogen storage materials with excellent storage performance are prepared, which lays the foundation for subsequent large-scale batch preparation.