The invention discloses a cyprinus carpio L. color enhancer compound feed and a preparation method and application thereof, and belongs to the technical field of aquatic product breeding. The cyprinuscarpio L. color enhancer compound feed comprises the following raw material components in percentage by mass of 20%-30% of fish meal, 6%-10% of beer dry yeast, 12%-18% of corn flour, 10%-20% of soybean protein concentrate, 20%-30 of flour, 3%-5% of fish oil, 2%-3% of soybean oil, 0.8%-1.2% of a vitamin premix, 1.6%-2.4% of a mineral premix, 0.1%-0.2% of methionine, 0.05%-0.1% of vitamin E, 0.05%-0.1% of vitamin C, 0.3%-0.5% of choline chloride, 0.8%-1.0% of calcium dihydrogen phosphate, 0.05%-0.1% of garlicin, 4%-8% of Antarctic krill powder, 0.01%-0.03 of capsorubin, 3%-6% of spirulina, 0.02%-0.03% of proteases and 0.01%-0.02% of an antioxidant. The compound feed is meal to be loved by cyprinus carpio L., can meet nutrient requirements, can promote the normal growth of fish bodies, can effectively improve the immunity of fish bodies, and has favorable effect on deepening the red color of the bodies of the cyprinus carpio L.