The invention provides a complete compound feed for boar, which is prepared from the following raw materials: 50-55% of corn, 10-14% of peeled soybean meal, 13-17% of wheat, 6-10% of soybean hulls, 3-7% of wheat bran, 0.5-1.7% of fermented soybean meal, 1-3% of fish meal, 1-1.7% of calcium hydrophosphate, 0.8-1.4% of limestone powder, 0.1-0.5% of lysine, 0.04-0.06% of methionine, 0.06-0.10% of threonine, 0.01-0.02% of compound enzyme preparation, 0.06-0.1% of probiotics, 0.2-0.4% of sodium bicarbonate, 0.1-0.2% arginine hormone and 0.5-1% of compound premix for boar. The feed provided by the invention has complete nutrition, is easy to digest and absorb, obviously reduces heat stress of the boar, improves volume of semen of each time of ejaculation and sperm motility, increases total number of each time of ejaculation and semen dilution quantity, and improves breeding capacity of the boar.