The present invention discloses a feed for improving the egg yield of laying hens, a preparation process and a feeding method of the feed. The feed consists of 90-93% of a basic feed, 5-7% of dried traditional Chinese medicine residue powder and 2-3% of a functional additive. The functional additive comprises the following components in parts by weight: 0.02-0.03 part of choline chloride, 0.5-0.7part of resveratrol, 0.06-0.1 part of dihydropyridine, 2-3 parts of soybean isoflavones, 3-5 parts of bee pollen, 1.4-2.6 parts of glycyrrhizin, 3-4 parts of beta-carotene, 6-8 parts of linoleic acid,0.8-1.2 parts of iron methionine, 0.8-1 part of lysine and 1-2 parts of tryptophan. The feeding method is as follows: 1-4-week chicks are fed 6-8 times every day, and every time the feeding amount is4-5g per chick; 5-6-week chicks are fed 4-6 times every day, and every time the feeding amount is 13-15g per chick; and 8-20-week growing chickens are fed 3 times every day, and every time the feeding amount is 60-80g per chickens. The feed not only provides abundant nutrient substances for laying hens in egg-producing period, but also stimulates the secretion and expression of estrogen in the body of laying hens, performs exogenous supplement of natural plant estrogens, and prolongs the egg-production peak.