Background : Diabetes is a growing problem. Based on data from IDF (International Diabetes Federation), the prevalence of diabetes mellitus worlwide is 382 million and is estimated to increase for 55% become 592 million in 2035. Diabetes mellitus have very serious complication if it is uncontrolled. Those complications are cardiovascular disease, eye disease, renal disease, neural disease, tooth disease,if it occurs as foot gangrene it will be very difficult to cure, and also circulation problem to the brain that can cause stroke and death. Purpose : This research is conducted to evaluate the correlation between blood pressure and glucose level in type 2 diabetes mellitus patient. Method : this research is nonexperimental with cross sectional approach that done in 2 months. The sample study are 50 person having type 2 diabetes mellitus in PKU Kota Yogyakarta hospital. The study anlysis is using Pearson’s test. Result : In the result analysis with Pearson’s test, the significancy is p=0,716 (not significant) for the relation between sistole blood pressure and blood glucose, and p=0,583 (not significant) for the relation between diastole blood pressure and blood glucose. Conclusion : No correlation between blood pressure and blood glucose in type 2 diabetes mellitus patients in PKU Kota Yogyakarta hospital.