Abstract:Hydrogen is the most potential secondary energy while its high cost and low safety of hydrogen storage and transportation are technical bottlenecks that hinder its development. Aluminum gallium alloy is a long-term energy storage mode that integrates preparation and storage. As a new type of hydrogen storage material, deep development and utilization of aluminum gallium alloy are favored by researchers. Reaction mechanism of aluminum-gallium alloy is discussed. Preparation methods and research progress of aluminum gallium alloy at home and abroad are introduced, and future research direction is prospected.