Objective: To evaluate the interference of supervised resistance and aerobic training in glycemic levels during and after 36 sessions, belonging to a training period of three months in patients with type 2 diabetes mellitus (T2DM), as well as the comparison of both exercise training. Methods: This is a experimental study with twelve T2DM patients, all sedentary and attended by the Specialized Care Center of Viçosa-MG, randomized into aerobic (n = 6.54 ± 5 years) and resisted (n = 6.58 ± 9 years) groups. Capillary glycemia was collected before (M1), during (M2) and after (M3) each exercise session for 12 weeks with a weekly frequency of three days. It was used ANOVA for repeated measures followed by Tukey and Student’s test. Results: A mean drop in capillary glycemia was observed between M1 and M2 (p = 0.001), M2 and M3 (p = 0.001) and M1 and M3 (p = 0.001) in both groups. Conclusion: It is concluded that aerobic and resistance exercise training caused a decreased in the blood glucose during exercise sessions. The findings showed that both modes of exercise are important in the hyperglycemic treatment of T2DM patients.