The invention discloses a feed specially used for crabs, which includes the raw materials comprising corn, blood worm powder, meat of margarya, bean curd residue, powder of sophora japonica leaves, powder of pine leaves, clam meat, laminaria japonica powder, ceratophyllum demersum powder, elaeagnus angustifolia, calcium hydrogen phosphate, zeolite powder, codonopsis pilosula, folium artemisiae argyi, negundo chastetree fruits, radix isatidis, polygonum multiflorum, spina date seeds, pericarpium citri reticulatae and a composite additive which includes the following raw materials: composite amino acids, a composite enzyme preparation, composite microelements, composite vitamins, polysaccharides, octacosanol, L-carnitine, essential oil of clove and [gamma]-aminobutyric acid. The feed has scientific formula, abundant nutrients and good palatability, contains a large amount of nutrients required in growth of crabs and can improve immunity of the crabs and improve appetite of the crabs, thereby promoting growth of the crabs.