The invention discloses an antibiotic-free fragrant feed additive composition for animals; the composition is cooperatively used with a common daily diet, and the daily consumption accounts for 0.2-1.5% of the weight of the common daily diet, wherein the composition includes the following components: ethanol, formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, furfural, 5-methyl furfural, 5-hydroxymethyl furfural, vanillin, maltol, guaiacol, 4-methyl guaiacol, dimethoxyphenol, carvacrol, thymol, carvacrol, cinnamaldehyde, 2,3-pentanedione, methyl cyclopentenolone, 2-cyclopentenone, 2(5H) furanone, furfural ethylene glycol, L-linalool, methyl linoleate, glucose, xylose, mixed amino acids for animal feeds, L-dextran, natural excipients andwater. The antibiotic-free fragrant feed additive composition for animals is suitable for raising pigs, chickens, ducks, quails, pigeons, rabbits, sheep, cattle, fishes, shrimps and other animals.