A forage for improving later-period production performance of laying hens and eggshell quality comprises, in parts by weight, 45-50 parts of corn, 10-15 parts of soybean meal, 8-12 parts of wheat, 5-10 parts of corn germ cake, 3-6 parts of alfalfa meal, 4-6 parts of calcium particles, 4-6 parts of brewer's grains, 3-5 parts of calcium powder, 2-4 parts of corn gluten meal, 0.5-1 part of calcium hydrogen phosphate, 0.1-0.2 part of bentonite, 0.2-0.4 part of plant grease, 0.0005-0.0008 part of betaine, 0.2-0.4 part of edible salt, 0.2-0.4 part of lysine, 0.1-0.2 part of composite vitamins, 0.1-0.2 part of choline, 0.1-0.2 part of composite trace elements, 0.1-0.2 part of sodium bicarbonate, 0.1-0.2 part of methionine and 0.002-0.006 part of phytase. The forage is capable of satisfying nutrition demands of laying hens at a later period, improving laying rate and eggshell thickness, and improving eggshell quality.