The statement that diabetes is most afraid of three kinds of green vegetables is inappropriate, although some foods have a low glycemic index, but food is not a substitute for medicine to achieve the treatment of diabetes, or completely alleviate the symptoms of diabetes. The etiology and pathogenesis of diabetes are complex and have not been fully elucidated. Therefore, the treatment of diabetes can only be controlled and alleviated at present. The treatment method is based on general treatment, drug treatment and surgery. 1. General treatment: Dietary treatment is the basis for controlling and improving the treatment of diabetes mellitus. Reasonable dietary control can reduce the burden on patients’ pancreatic islet cells. Patients should pay attention to balanced diet, small meals, appropriate exercise to improve. 2. Drug therapy: the drugs used in the clinic are glibenclamide, glipizide, metformin, rosiglitazone and so on. 3. Surgical treatment: through general treatment and drug treatment, can not achieve good weight loss and blood sugar control, should be considered under the guidance of the doctor metabolic surgery, or pancreas transplantation and islet cell transplantation for treatment. For diabetic patients, food can only play an auxiliary role, want to control the problem of diabetes, should be in accordance with the doctor’s instructions through medication or surgical treatment.