The invention discloses a patch for treating breast hyperplasia. The paste comprises, by weight, 4-8g of clove, 5-10g of peach seeds, 4-8g of chuanxiong rhizomes, 4-8g of olibanum, 4-8g of common peony roots, 4-8g of Chinese angelica roots, 8-12g of dahurian angelica roots, 4-8g of turmeric rhizome, 3-5g of common burreed rhizomes, 3-5g of siebold wildginger herbs, 4-8g of myrrh, 1-3g of borneol,4-8g of giantleaf ardisia rhizomes, 4-8g of Chinese honeylocust spines, 1-3g of camphor, 4-8g of Yunnan wintergreen stems and leaves, 3-5g of dragon's blood, 4-6g of pangolin scale, 5-10g of Asiatic pennywort herbs, 10-15g of common selfheal spikes, 0.5-1g of saffron crocus stigma, 4-8g of henry chloranthus herbs, 4-8g of appendiculate cremastra pseudobulb, 4-8g of broadleaf common valeriana rhizomes and 5-10g of cowherb seeds. According to the patch, pure traditional Chinese medicinal materials serve as raw materials, and the paste is reasonable in matching and free from toxic and side effects and has the functions of soothing liver, promoting lactation, activating blood, dissolving stasis, inhibiting secretion of prolactin and the like.