The invention discloses a feed for litopenaeus vannamei boone, in particular to a composite feed for feeding litopenaeus vannamei boone cultured at low salinity, which comprises the following components in part by weight: 20 to 30 parts of manhattan fish meal, 10 to 16 parts of bean pulp, 10 to 14 parts of peanut cake, 7 to 10 parts of corn protein powder, 18 to 20.5 parts of high gluten flour, 1to 3 parts of molasses yeast, 1 to 3 parts of squid extract, 0 to 1 part of table salt, 1 to 2 parts of calcium lactate, 0 to 0.5 part of monocalcium phosphate, 1 to 2 parts of fish oil, 1 to 2 partsof soyabean lecithin, 1 part of vitamin premix and 1 part of mineral premix. The feed is mixed simply and balance in nutrition, can obviously improve the growth of the litopenaeus vannamei boone cultured at low salinity and improve the meat quality and color of the litopenaeus vannamei boone cultured at low salinity.