Abstract: Polycystic ovary syndrome（PCOS） is one of the common endocrine disorder affecting women of reproductive age，and is characterized by oligo- or anovulation，hyperandrogenism and polycystic ovaries. Some findings show that the cause of PCOS has something to do with the abnormal regulation of transcription factors，such as the Transforming Growth Factor-beta（TGF-β） superfamily. Bone Morphogenetic Protein 4（BMP4） and Bone Morphogenetic Protein 7（BMP7） are both important members in TGF-β superfamily， and play an significant role in the folliculogenesis、ovulation and the development and apotosis of granulosa cells in ovary. As a result，in order to know more about the pathogenesis and treatment of PCOS， it is necessary to make clear the regulation function of BMP4 and BMP7 in female reproductive system.

Key words: Polycystic ovary syndrome, Bone morphogenetic proteins, Bone morphogenetic protein receptors