Objective To analyze the relationship between anti Mullerian hormone (AMH) levels and abnormal endocrine metab-olism in patients with polycystic ovary syndrome (PCOS) .Methods From January 2014 to December 2015 ,a total of 200 PCOS pa-tients were recruited into experimental group ,180 infertility patients causing by tubal disorder were selected into the control group . According to the level of AMH ,PCOS patients were divided into high AHM group(AMH=10 ng/mL ,98 cases) and low AMH group (AMH<10 ng/mL ,102 cases) .According to the index of insulin resistance(HOMA) ,PCOS patients were divided into high HOMA group(HOMA index=2 .97 ,108 cases) ,and low HOMA group (HOMA index <2 .97 ,92 cases) .Follicle stimulating hor-mone(FSH) ,serum AMH ,estradiol ,luteinizing hormone(LH) ,fasting blood glucose and fasting insulin ,testosterone(T) ,high den-sity lipoprotein(HDL) ,low density lipoprotein(LDL) were detected ,the level of insulin resistance(factor HOMA-IR were calculat-ed ,then internal secretion metabolic differences and the effect of AMH were analyzed .Results The AMH ,HOMA-IR ,LH ,T in the control group were significantly lower than those in the experimental group(P<0 .05) ,body mass index(BMI) in the control group was significantly higher than that in the experimental group(P<0 .05) .BMI ,HOMA-IR in the high AMH group were sig-nificantly lower than those in the low AMH group(P<0 .05) .There were no significant differences on LH and T between the high AMH group and low AMH group (P>0 .05) .AMH ,INS ,BMI in the high AMH group were higher than those in the low AMH group(P<0 .05) .Conclusion AMH in patients with PCOS increased significantly ,and AMH was negatively correlated with BMI and HOMA-IR ,and positively correlated with testosterone .