The invention discloses biological enzyme protein feed additives which comprises microbe live bacteria cells, active biological enzymes, amino acid, starch, fibers and water. The microbe live bacteria are Candida utilis bacteria, lactobacillus acidophilus and Bacillus licheniformis. The active biological enzymes are protease, amylase, beta-glucanase, xylanase, pectase, glucoamylase and fat acid enzyme, and amount of the active biological enzymes is 20000-24000 mu/g. The additives are full of microbe live bacterial and active biological enzymes for growth, metabolism, digestion, absorption, immunoregulation of livestock and poultry, intestinal tract flora balance capability, intestine mucous membrane epithelial cells restoration capability, intestinal villus growth capability, vitamin and trace element supply capability of the livestock and poultry are maintained. Absorption and utilization rate of the feed additives is high. According to the feed additives, drain amount of nitrogen, phosphor and calcium in night soil of the livestock and poultry is reduced, qualities of livestock, poultry and aquatic products are raised, and environmental pollution is reduced. Offensive odor of the livestock and poultry night soil is weakened and culture environment is purified.