Introduction Although, the primary goal of bariatric surgery is body weight control, other various beneficial effects have been confirmed especially the improvement in type 2 diabetes mellitus and associated comorbidities after surgery. Patients and Methods: A prospective study to compare the effect of sleeve gastrectomy and minigastric bypass on obese patients with type II DM, divided into 2 groups, each containing 22 patients. Results: The follow-up was 12 months for both groups. Duration of surgery was different in both groups with Mean ± SD 89.5 ± 15 in SG group and 105 ± 11.1 in MBG. There was 2 cases had intraoperative bleeding that managed immediately intraoperative. Leak test was done and 2 patients were positive in MGB and intraoperative repair was done One case of leakage was detected after SG and managed nonsurgically with percutaneous drainage for intraabdominal collection and Mega stent insertion. Both surgical procedures achieved T2DM remission. Both FPG and HbA1c at 1 year are significantly lower in diabetic patients treated by MGB when compared to SG patients (SG from 201 ± 17.8 to 98.8 ± 12.7, MGB from 214.2 ± 27.6 to 83.9 ± 6.3 for FPG); (SG from 7.6 ± 0.71 to 5.5 ± 0.41 ,MGB from 7.9 ± 0.53 to 5.3 ± 0.38 for HbA1c). Conclusion: MGB and SG achieved T2DM remission, but MGB provided a better performance than SG at 1 year.