The invention relates to a low fishmeal feed for the final grow-out period of carassius auratus gibelio and a preparation method thereof, and belongs to the technical field of aquatic formula feeds. The preparation method comprises the following steps: grinding fish meal, blood powder, soybean meal, rapeseed meal, cottonseed meal, flaxseed cake, sesame seed meal, bran, flour, rice bran, vegetable oil, premix for fish, bile salt, 50% choline chloride, attapulgite, non-starch polysaccharide enzyme, lysine, methionine, forsythia fructus extract, monocalcium phosphate and potassium sorbate mildew preventive, uniformly stirring and mixing the powders; grinding the mixture into a mixed material by virtue of a grinder; and finally preparing pelletized feed by utilizing a conventional pelletized feed method. The low fishmeal feed for the final grow-out period of carassius auratus gibelio is comprehensive and rich in nutrition, and can be used for improving the immunity of carassius auratus gibelio, improving stress, reinforcing disease resistance, improving feed palatability and promoting growth.