The invention discloses a traditional Chinese medicine for treating purpura and a preparation process thereof. The traditional Chinese medicine comprises, by weight parts, 13-18 parts of honeysuckle, 8-12 parts of forsythia suspensa, 5-10 parts of epimedium, 9-11 parts of the root of bidentate achyranthes, 5-7 parts of schizonepeta, 14-16 parts of golden cypress, 3-5 parts of ground hemlock, 8-10 parts of dried tangerine or orange peel, 8-10 parts of pangolin, 9-11 parts of sophora flower, 3-8 parts of silktree albizziae flower, 5-10 parts of aloes, 4-6 parts of liquorice, 4-6 parts of earthworm, 6-8 parts of Chinese gromwell, 3-8 parts of codonopsis pilosula, 5-10 parts of the root of large-flowered skullcap, 13-18 parts of glabrous greenbrier rhizome, 3-8 parts of smoked plum carbon, 5-10 parts of glossy privet fruit, 10-20 parts of hibiscus, 10-20 parts of plantago asiatica and 5-10 parts of fragrant solomonseal rhizome. The traditional Chinese medicine for treating purpura has functions of clearing heat and detoxicating, cooling blood to remove stasis, tonifying qi, nourishing yin and tonifying kidney, has good effect on treating purpura without any toxic and side effects and prevents relapse of purpura.