Poor blood glucose control in liver cirrhosis can aggravate the poor prognosis of patients. Under the background of the increasing number of liver cirrhosis patients with metabolic abnormalities, how to optimize treatment is particularly important. The traditional treatment of diabetes at the stage of liver cirrhosis is limited to insulin intensive therapy, but the incidence of hypoglycemia is high, blood sugar fluctuates greatly, and multiple injections are required. Research shows that insulin therapy has an increased overall mortality compared with non insulin therapy. We used metformin,Ryzodeg and an oral DDP IV enzyme inhibitor as the core combination according to the special pathological mechanism of elevated blood glucose in liver cirrhosis . After preliminary experiments, we found that the program was stable and was not easy to have hypoglycemia, and there was no traditional risk of lactic acid poisoning caused by metformin. We designed an open randomized controlled clinical study, Compared with the traditional insulin intensive treatment scheme, this new combination scheme was compared whether it could improve the blood glucose level, the incidence of hypoglycemia and lactic acid level, the incidence of cirrhosis complications, and the long-term survival rate of liver disease. This study is helpful to optimize the hypoglycemic treatment of cirrhosis with diabetes, and improve the blood glucose and long-term prognosis, The positive evidence of this study contributes to the consensus or guidelines for the treatment of cirrhosis with diabetes.