The invention discloses a bean-saving chicken feed which comprises the following components in parts by weight: 35-45 parts of corn, 20-30 parts of hydrophyte natantia powder, 5-10 parts of bean pulp, 5-10 parts of Leguminosae straw powder, 5-10 parts of malt, 1-2 parts of multivitamin, 1-2 parts of microelement, 5-10 parts of blood powder, 2-4 parts of edible oil and 2-5 parts of animal viscera. The hydrophyte natantia powder comprises any one or more of lotus, calamus, Scirpus tabernaemontani, cattail, reed, pond lily, royal waterplatter, water chestnut, Nymphoides peltatum, hydrilla, hornwort, Vallisneria spiralis, curly pondweed, watermilfoil, common waaterrthacinth, Pistia stratiote Linn, Hydrocharis morsus-ranae, water fern, salvinia, water fern, Lemna duckweed, duckweed, Pistia stratiotes, Eichhornia crassipes and Lemna minor. The feed is simple in proportioning and convenient to use, and substitutes part of grain raw materials (mainly substitutes beans, and lowers the consumption of corn) with the hydrophyte natantia, thereby greatly lowering the cost of the feed.