The invention relates to a Chinese herbal medicine composition. A Chinese herbal medicine composition for treating dermatosis is prepared from the following raw materials: rhizoma smilacis glabrae, cortex dictamni, fructus kochiae, radix ampelopsis, cortex phellodendri, campsis grandiflora, cortex albiziae, paniculate swallowwort root, radix stemonae, rhizoma dioscoreae bulbiferae, rhizoma imperatae, common bluebeard herb, herba lobeliae chinensis, melastoma dode candrum lour, fructus xanthii, hibiscus rosa-sinensis, polygonum perfoliatum, eclipta alba, desmodium triquetrum, ilex rotunda, saxifrage, tuber fleeceflower stem, rhizoma dioscoreae, herba pogostemonis, linseed, maple leaf, roasted rhizoma atractylodis macrocephalae, fructus hordei germinatus, poria cocos and liquorice. The Chinese herbal medicine composition for treating dermatosis provided by the invention can quickly cure the dermatoses such as cutaneous pruritus, urticaria, neurodermatitis, psoriasis and the like.