The invention discloses a novel traditional Chinese medicine composition for treating gum bleeding and a preparation method thereof. The traditional Chinese medicine composition mainly comprises the following raw medicines: rhizoma coptidis, snakegourd root, gypsum, common anemarrhena rhizome, reed rhizome, lophatherum herb, cape jasmine fruit, Chinese eaglewood wood, rosewood, rhubarb, radish seed, rehmannia root, dandelion, figwort root, tree peony bark, red peony root, honeysuckle flower, Chinese wolfberry root-bark, officinal magnolia bark, medicated leaven, Chinese dwarf cherry seed, dried tangerine peel, nutgrass galingale rhizome, carbonized cacumen platycladi, carbonized garden burnet root and the like. The traditional Chinese medicine composition can be prepared into any one commonly used oral preparation according to the conventional method of traditional Chinese medicine preparations. The invention can obviously improve the symptoms of gum and tooth seam bleeding, flaring up of stomach fire, burning of blood collateral vessels, deficiency of kidney-yin, deficient fire stirring up internally, extravasation of forcing blood and the like, and has obvious clinical curative effect, significant curative effect and rapid effect. Since the traditional Chinese medicine composition adopts medicinal and edible medicines stipulated in the Chinese Pharmacopoeia to compound, the composition has the advantages of low cost, basically non-toxic side effects and the like.