Objective: To know the correlation of insulin resistance with body mass index in obesity women infertility.Method: This research used a cross-sectional study design. This study was conducted on February 2017 until January 2019 at Obstetric and Gynecology Division of RSUP Dr. M. Djamil and Ibnu Sina Hospital in Padang. The population of the study were all patients were obese in women of reproductive age with infertility complaints with a total sample of 27 people. The sampling technique was consecutive sampling. Data analysis was done by univariate and bivariate using Pearson correlation test.Results: We found that less than half of the respondents experienced insulin resistance with HOMA-IR values > 2,5 (22.2%) and more than half of respondents did not experience insulin resistance with HOMA-IR values < 2,5 (77.8%). There was a correlation of insulin resistance with body mass index in obese female infertility (p 2,5 (22,2%) dan lebih dari separuh responden tidak mengalami resistensi insulin dengan nilai HOMA-IR < 2,5 (77,8%). Terdapat korelasi resistensi insulin dengan indeks massa tubuh pada infertilitas perempuan obesitas (p