The invention relates to a drug for treating polycystic ovarian syndrome. The drug is characterized by comprising an oral medicine and an enema medicine, wherein the oral medicine comprises 15 g of common curculigo rhizome, 10 g of epimedium, 15 g of common cnidium fruit, 15 g of medicinal morinda root, 15 g of dodder, 15 g of glossy privet fruit, 15 g of medlar, 10 g of prepared rhizome of rehmannia, 15 g of angelica, 15 g of szechwan lovage rhizome, 15 g of salvia miltiorrhiza, 15 g of dangshen, 15 g of stir-fried ovate atractylodes root, 15 g of tuckahoe, 30 g of common yam rhizome, 15 g of pinellia, 12 g of seasoned orange peel, and 15 g of officinal magnolia bark, and the enema medicine comprises 15 g of peach seed, 10 g of safflower, 15 g of common burreed tuber, 12 g of cassiabarktree twig, 15 g of trumpetweed, 15 g of speranskia tuberculata, 15 g of common selfheal spike, 15 g of Chinese honeylocust spine, 15 g of szechwan lovage rhizome, 15 g of seaweed, and 15 g of kelp. According to the present invention, treatment philosophy of combination of the oral medicine and the enema medicine is adopted, and blood circulation activating, blood stasis dissipating, swelling subsiding, and stagnation eliminating are adopted to reduce intumescent ovary and thin ovarian follicle, such that ovulation easily occurs.