Objective It is well known that morbidity and mortality in patients with diabetes is influenced by diabetes complications, and that the long-term prognosis of patients with microvascular and macrovascular complications, such as chronic complications, can be greatly affected. Therefore, the proper management of diabetes and even the assessment of the management are very important. Methods 2,059 patients receiving outpatient care at 10 general hospitals located in Seoul and Gyeonggi-do had been observed from 26 to 31, March 2012, in the areas of blood glucose management, complications management, and whether or not diabetes education was given. Results The mean age, duration of diabetes, and HbA1c of the subjects were 60.9 ± 11.6years, 10.8 ± 8.2years, 7.4 ± 1.3%, respectively. The percentage of those achieving the goal of glycemic control (HbA1c < 7%) was 44.7%. 52.6% were controlled with blood pressure below 130/90 mm Hg, 43.1% were controlled with fasting glucose below 130 mg/dL, the percentage of those achieving the goal LDL-cholesterol (100 mg/dL<) was 66.3%. 72.8% were given oral hypoglycemic agents, 6.9% were given only insulin, 15.4% were given an insulin and oral hypoglycemic agent combination therapy. Performance Rates in fundus photogram examination within one year was 56.1% and microalbuminuria was 75.4%, respectively. 55.2% had a diabetes education experience at least once and 57.3% was educated in patients with diabetes duration of less than 10 years. Conclusion Among type 2 diabetes patients in general hospitals, 45% reached target blood glucose, 45% did not receive diabetes education and Performance Rates in fundus photogram examination within 1 year was 56%. Finally the results showed the diabetes mellitus was not well-maintained. Thus, more aggressive education and testing need to be performed for better progresses.