The invention discloses a traditional Chinese medicine for treating nephritis of Schonlein-Henoch purpura. The traditional Chinese medicine is prepared from the following medicinal materials: lalang grass rhizome, isatis root, trichosanthis, Madder root, alkanet, lophatherum gracile, root of rehmannia, divaricate saposhnikovia root, rheum officinale, pyrola, hawthorns, gypsum, rattletop, rhizoma anemarrhenae, jasmine, panax notoginseng, cat-tail pollen, cicada slough, radix scrophulariae, subprostrate sophora, the root bark of the peony tree, red paeony root, eclipta alba, white paeony root, radix pseudostellariae, merremia sibirica, spiny meconopsis herb, cordyceps sinensis, astragalus, glossy privet fruit, adder tongue herb, rock pine, Oldenlandia diffusa, Gymnocladus chinensis, shinyleaf pricklyash root, patrinia, Tripterygium wilfordii, herba cepbalanoplosis segeti, donkey-hide gelatin, Chinese-dates, motherwort, honeysuckle, dandelion, Chinese violet, rhizoma smilacis glabrae, cortex dictamni, yam rhizome, the root of red-rooted salvia, rhizoma alismatis, radix angelicae and Licorice Roots Northwest Origin. The clinical experiment proves that the traditional Chinese medicine disclosed by the invention can be used for safely and effectively treating nephritis of Schonlein-Henoch purpura.