The invention discloses a traditional Chinese medicine composition used for preventing and controlling porcine ileitis. The traditional Chinese medicine composition comprises 15 to 23 parts of cabbage, 9 to 14 parts of endothelium corneum gigeriae galli, 11 to 17 parts of dark plum, 8 to 15 parts of fructus psoraleae, 6 to 12 parts of halloysitum rubrum, 6 to 10 parts of sanguisorba officinalis, 13 to 19 parts of radix puerariae, 10 to 16 parts of flos hibisci, 12 to 17 parts of inula flower, 18 to 25 parts of fructus perillae, 5 to 9 parts of valeriana jatamansi Jones, and 13 to 18 parts of exocarpium citri rubrum. The traditional Chinese medicine composition is prepared by following steps: part of the raw materials is subjected to early extraction, and then is mixed uniformly with the rest materials; and an obtained mixture is smashed. The traditional Chinese medicine composition is high in extraction efficiency, and clear in curative effect, and is capable of treating porcine ileitis with high efficiency.