Traditional Chinese medicine composition for preventing infection of skin at catheter opening of central vein indwelling catheter

The invention discloses a traditional Chinese medicine composition for preventing infection of the skin at a catheter opening of a central vein indwelling catheter. The traditional Chinese medicine composition is prepared from, by weight parts, 15-20 parts of viola mandshurica, 15-20 parts of climbing groundsel herb, 10-15 parts of ampelopsis japonica, 10-15 parts of cortex dictamni, 10-15 parts of campsis grandiflora, 8-12 parts of cortex albiziae, 8-12 parts of aloe, 5-10 parts of siegesbeckia pubescens, 5-10 parts of rhizoma osmundae, 5-10 parts of fineleaf schizonepeta herb, 3-6 parts of humifuse euphorbia herb and 3-6 parts of dendrobium nobile. The invention further discloses a method for preparing the traditional Chinese medicine composition. The traditional Chinese medicine composition has effects of clearing heat and removing toxicity, promoting circulation and removing stasis, removing slough and promoting growth of tissue regeneration, can effectively prevent infection of the skin at the catheter opening of the central vein indwelling catheter, is safe, and has no toxic or side effect.