The invention belongs to the technical field of large spangle production and particularly relates to a special alloy zinc ingot for large spangle production and an application of the ingot. The special alloy zinc ingot for large spangles is prepared from components in percentage by weight as follows: 0.77%-0.87% of aluminum, 0.06%-0.10% of antimony and the balance of zinc and inevitable impurities, wherein the content of the impurities is less than 0.015%. With the adoption of the alloy zinc ingot, the number of times of addition of zinc ingots can be obviously reduced, meanwhile, the fluctuation of molten zinc components can also be reduced, the molten zinc components are controlled in a proper range, quality defects are reduced, the thickness of a zinc layer is reduced, the weight of the zinc layer is reduced, the size of the spangles is larger than 8 mm, the uniformity of the spangles is good, the labor intensity is reduced, defects of zinc granules and zinc scars are reduced, and the surface quality of large spangle products is improved.