Blood glucose levels in type 2 diabetes mellitus (T2DM) patients should be well controlled to prevent complications. In addition to diet and the use of drugs, nutritional status is known also play a role in maintaining blood glucose. This study aims to determine the association between nutritional status and blood glucose level of T2DM patients. This cross sectional study using T2DM outpatients at Endocrine Unit of RSUD dr Soetomo Surabaya on January-February 2017. The variables were nutritional status (body mass index/BMI) and fasting blood glucose (FBG). Primary data collected by measuring the weight and height and secondary data by looking at FBG result from patient’s medical record. The data was processed using SPSS program version 20. There were 65 subjects who met the criteria. The result showed 72.9% of patients had more nutritional status with an average BMI 26.06±4.625 kg/m2 and 61.52% had poor blood glucose levels with an average GDP of 142.17±44.012 mg/dL. Pearson test result showed an association between nutritional status and FBG with p value 0.04 and association coefficient value 0.256.