The invention discloses a traditional Chinese medicine composition for treating skin diseases and venereal diseases. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: centella asiatica, glossy privet fruits, purslane, smoked plums, semen momordicae, flos hibisci, radix isatidis, radix sophorae flavescentis, cortex meliae, herba epimedii, olive leaves, herba chloranthi serrati, saponin, cortex dictamni, stenoloma chusana, fructus kochiae, zinc oxide, tripterygium wilfordii, lalang grass rhizomes, artemisia anomala, sulfur, coptis chinensis, asarum, catechu, calamine, persimmon leaves, blister beetles, minium, cod-liver oil, rhizoma smilacis glabrae and radix cynanchi paniculati. The traditional Chinese medicine composition is prepared from pure traditional Chinese medicines, has no irritation to skin, causes no pain to patients, is low in treatment cost and unique in effect, is rich in skin nutritional agents and penetrants in preparation, is prepared from all-around traditional Chinese medicinal materials, and lays a solid foundation for treating skin venereal diseases.