The association between serum uric acid levels and glycemic control in diabetic patients was not fully clarified. This study aimed to investigate the correlation between uric acid levels and glycemic control in patients with type II diabetes mellitus. A total of 140 patients were recruited and their uric acid levels and glycated hemoglobin (HbA1c) levels were measured. The results showed a significant positive correlation between uric acid levels and HbA1c levels, indicating that higher levels of uric acid were associated with poorer glycemic control in patients with type II diabetes. Moreover, patients with higher uric acid levels were found to have a higher risk of developing diabetic complications. These findings suggest that monitoring uric acid levels may be a useful marker for assessing glycemic control and predicting diabetic complications in type II diabetic patients.