The coexistence of endocrine disorder and metabolic disorder caused by polycystic ovary syndrome combined with insulin resistance(PCOS-IR) threatens reproductive health of women and triggers obesity-related diseases(diabetes，metabolic syndrome，etc.).The pathogenesis of PCOS-IR is complicated and involves multiple visceral diseases，making it difficult for the treatment.Traditional Chinese medicine has marked effect on this disease.Based on the theory of “thoroughfare vessel belonging to yang brightness”，our teacher put forward the academic viewpoint of treating gastrointestinal disorders from yang brightness，which can restore the spontaneous ovulation and significantly alleviate insulin resistance.