The invention relates to a compound feed for a first-born nursing sow, and aims to effectively solve the problems of poor reproductive performance, poor body condition and influence on the reproductive performance of first-born sows. The technical scheme for solving the problems is that: the feed is prepared from maize or puffed maize, wheat or puffed wheat, bean pulp, mountain flour, calcium hydrogen phosphate, common salt, carrier-containing nursing sow complex vitamin, carrier-containing nursing sow complex mineral and auxiliary materials, wherein one kilogram of feed comprises 50 to 650 grams of maize, puffed maize or a mixture thereof, 50 to 650 grams wheat, puffed wheat or a mixture thereof, 100 to 300 grams of bean pulp, 8 to 18 grams of mountain flour, 10 to 28 grams of calcium hydrogen phosphate, 3 to 6 grams of common salt, 8 to 12 grams of carrier-containing nursing sow complex vitamin, 8 to 12 grams of carrier-containing nursing sow complex mineral and the auxiliary materials. The feed can completely meet the requirement of the first-born sow for suckling pigs on nutrition and ensure fast weight gaining of the suckling pigs during the nursing and high survival rate so as to improve the annual sell rate of a pig farm, increase the survival rate and increase the total sell rate of each sow throughout the life.