Preparing method for aluminum air battery anode materials

The invention discloses a preparing method for aluminum air battery anode materials. Powder materials including tin, gallium, magnesium and aluminum are weighed according to the proportion, vacuum storage is conducted after the weighed materials are wrapped by aluminum foil, the prepared raw materials are subjected to ball milling and powder mixing, mixed powder is subjected to cool isostatic pressing, a pressed blank is subjected to hot isostatic pressing after being subjected to vacuum drying and gas removal, and the aluminum air battery anode materials are obtained. The obtained anode materials have higher density compared with a traditional casting alloy, the problem that since an electrolyte seeps into an electrode base body, the service life of an electrode is shortened is effectively solved, and the aluminum air battery anode material utilization rate is increased; and meanwhile, the anode alloy has higher strength, the problem of deformation of the aluminum air battery anode materials in a battery is