The invention belongs to the technical field of packaging films, and particularly relates to extinction aluminum foil and a preparation method thereof. The extinction aluminum foil comprises an extinction layer, an aluminum foil layer and a heat sealing layer; at least one surface of the aluminum foil layer is provided with an ink layer; the extinction aluminum foil can take aluminum foil as a printing layer without adding a polyester film layer to the printing layer; the structural composition of the extinction aluminum foil is simplified; and meanwhile, the extinction aluminum foil has goodheat resistance. According to the preparation method, the winding tension and the unwinding tension of the aluminum foil are controlled in the printing process so that the problem of material breakageof the aluminum foil can be prevented; error-free layout, no obvious color difference, accurate overprinting and uniform ink can be guaranteed through the control over printing parameters; and the printing precision of printed products is improved.