The invention discloses a silver carp skin preservation method, and belongs to the technical field of aquatic product processing. The silver carp skin preservation method comprises the following steps: (1) firstly, cleaning fish skin, placing the fish skin in alkali liquor for soaking, then performing secondary cleaning, and draining off surface moisture for later use; (2) carrying out hot air drying on the fish skin treated in the step (1), wherein the temperature of the hot air drying is 50-60 DEG C, and the water content of the fish skin after the hot air drying is 25%; and (3) finally spraying an antioxidant which is obtained by mixing lemongrass extract with arnebia root extract on the surface of the fish skin dried by hot air in the step (2), filling the fish skin with inert gas, andperforming packaging. The silver carp skin preservation method provided by the invention can effectively solve the preservation problem of freshwater fish skin, is convenient for subsequent processing of fish skin, and improves the utilization rate and the added value of fish skin.