The invention relates to a traditional Chinese medicine composition for treating mammary fibroadenoma. The traditional Chinese medicine composition is prepared from the following raw medicinal materials: 8-12 g of radix bupleuri, 8-12 g of curcuma tuber, 8-12 g of green tangerine peel, 8-12 g of Sinapis alba, 13-18 g of cowherb seed, 13-18 g of Zhejiang fritillaria bulb, 10-15 g of Chinese angelica, 13-18 g of Radix Astragali, 13-18 g of Radix Codonopsis, 10-15 g of radix paeoniae rubra, 10-15 g of Fructus Forsythiae, 4-7 g of Uniflower Swisscentaury Root, 15-25 g of spatholobus stem, 10-20 g of radish seed, 10-20 g of stir-fried millet sprout, 4-7 g of banksia rose, 10-15 g of corydalis tuber, 10-15 g of toosendan fruit, 10-15 g of Cortex moutan, 10-15 g of dandelion, 8-12 g of donkey-hide gelatin and 4-7 g of licorice. The traditional Chinese medicine composition has advantages of simple preparation, wide medicinal herbs resource and low cost. By water decoction for medication, the traditional Chinese medicine composition has efficacy of activating blood circulation to dissipate blood stasis, softening hardness and dissipating binds, clearing away heat and toxic materials, invigorating blood circulation and softening hardness and reinforcing qi and nourishing blood, can be used for effectively treating mammary fibroadenoma, has definite therapeutic effect and has high cure rate. By the use of the traditional Chinese medicine composition, mammary fibroadenoma is not easy to recur. The traditional Chinese medicine composition has no toxic or side effect.