For diabetic patients with poor pancreatic islet function, glucose-lowering treatment options preferred insulin therapy, because this part of the patient endogenous insulin secretion is relatively small, it will lead to very high blood glucose, so the treatment of choice of exogenous insulin to help carry out the treatment of blood glucose lowering. When choosing oral hypoglycemic drugs, there are certain restrictions, such as sulfonylurea hypoglycemic drugs can not be taken orally, this kind of drug is mainly to promote the secretion of insulin, the patient’s pancreatic function is relatively poor, sulfonylurea drug treatment effect is not ideal. But you can choose to stimulate insulin secretion is relatively small drugs, such as metformin, glucosidase inhibitors and other drugs, can also be effective in reducing blood sugar.