Polycystic ovary syndrome is a complex gynecological endocrine disease, incidence rate is high in childbearing age women, which often causes infertility owing to ovulation disorders. Western medicine mostly uses drug ovulation induction or assisted reproductive technology, but there are many adverse reactions. According to many years of clinical experience, Zhao Wei chief physician believes that kidney deficiency is the root of the disease. Kidney deficiency leads to the loss of Chong Ren's uterus, and blood stasis and phlegm dampness lead to poor Qi and blood circulation. According to the etiology, pathogenesis and menstrual cycle changes of the disease, she advocates the combination of tonifying and dredging, strengthening the kidney and regulating the cycle to treat infertility caused by polycystic ovary syndrome, and has achieved good clinical effect.