The invention discloses a lactating sow compound feed capable of improving piglet sow production performance. The lactating sow compound feed is prepared from the following raw materials in parts by weight: 50-55 parts of corn, 8-10 parts of ordinary bean pulp, 17-19 parts of wheat middling, 3-5 parts of extruded soybeans, 1-2 parts of fermented bean pulp, 1-2 parts of fish meal, 3-5 parts of wheat sprouts, 3-5 parts of kelp powder, 1-2 parts of fish oil, 1-2 parts of glucose, 2-3 parts of rice hull powder, 1-2 parts of soybean fiber, 0.3-0.5 part of table salt, 0.1-0.2 part of monosodium glutamate, 1-2 parts of a premix, 0.5-1 part of mountain flour, 0.5-1 part of monocalcium phosphate, 0.3-0.5 part of lysine, 0.05-0.1 part of valine, and 0.1-0.2 part of an enzyme preparation. When ate by the sow in the lactating period, the lactating sow compound feed disclosed by the invention can improve the food consumption of the lactating sow, increases the lactation yield and improves the milk quality, so that the piglet can suck sufficient high-quality breast milk, the daily gain of the piglet can reach up to above 250 g, and the weight of the piglet which is weaned on the 28th day can reach up to above 9 kg.