The invention provides traditional Chinese medicine for treating breast diseases, which is formed by mixing Chinese angelica, red paeony root, peach kernels, red flower, salvia miltiorrhiza, zedoary turmeric oil, rhizoma corydalis, szechuan lovage rhizome, lumbricus, pangolin scales, uniflower swisscentaury root, fritillaria thunbergii, spina gleditsiae, cowherb seeds, angelica root, mongolian snakegourd root, concha ostreae, pericarpium citri reticulatae viride, nutgrass galingale rhizome, tangerine seeds, radix bupleuri, dandelion, rhizoma pleionis, fructus forsythiae, astragalus root, codonopsis pilosula, liquorice, frankincense, myrrh, poria cocos and oldenlandia diffusa. The traditional Chinese medicine has the effects of invigorating Qi and enriching the blood, invigorating the blood circulation and softening the hard lumps, activating the meridians and detoxicating, soothing the depressed livers and regulating the flow of Qi, softening and resolving the hard lumps, invigorating the spleens and reducing the phlegm, strengthening the healthy energy and eliminating the pathogenic factors and can be used for treating hyperplasia of mammary gland, acute or chronic mastitis, breast fibroadenoma, intraductal papilloma, breast lump, breast scrofula, breast carbuncle and breast cancer.