The invention relates to traditional Chinese medicine disciplines, belongs to natural fertilization, not relates to medical ethical problems, and particularly relates to a traditional Chinese medicine compound used for polycystic ovarian syndrome complicating infertility and a preparation method thereof. The compound has the efficacy of soothing liver and regulating Qi, nourishing kidney and enriching Qi, promoting blood flow for regulating menstruation, and regulating endocrine and immunity, is used for polycystic ovarian syndrome complicating infertility of fertile women, and has the advantages of being nutritionally balanced, pure natural, harmless, and free of stimulants, additives, preservatives, and toxic and side effects; a freeze grinding technology is adopted, so that the loss of the effective ingredients of medicine is guaranteed to a maximum extent, and pure natural nutritional ingredients are ensured. Compared with western medicine, the compound has the advantages that a patient has no pain, the treatment cost is economical, the safety is high, and the like; no untoward effect on the patient is found in clinic treatment, the cure rate is high, the treatment course is short, and the compound can replace ovulation induction auxiliary measures or operations, such as ovulation induction and corpus luteum maintenance, of western medicine. According to the compound and the preparation method thereof, through many years of clinical experience, and the treatment and observation for 1210 patients, the total natural fertilization effective rate reaches 95.37%, and the average time to pregnancy is 3.45+/- 0.50 months.