T-2 toxin is a main mycotoxin to cause feed pollution, which harms hematopoietic tissues and immune organs of animals, causes hemorrhagic syndrome, leukopenia, anemia, and gastrointestinal dysfunction, and greatly disserves the animal health and livestock production. In this paper, general properties, toxigenic strains, toxic effects, toxicity mechanism, prevention and control of T-2 toxin are reviewed.［Chinese Journal of Animal Nutrition，2011，23（1）：20-24］