Polycystic ovarian syndrome (PCOS) is one of the causes of infertility in women. Our case described the treatment of an infertility patient in polycystic ovary condition after one year treatment with hormones. The patient's basal body temperature graph in the follicular phase and ovulation period temperatures were below 36.75 degrees, monopolartemperature, accompanied by cold hands and feet, which shows that the patient's constitution belongs to the Yin and Yang deficiency. With two months of traditional Chinese medicine therapy, patient got pregnancy by nourishing Yin and Yang. Traditional medicine is a worthy clinical practice in infertility woman with PCOS.