10.0mmol/L. In the diabetes special program of Beijing Satellite TV Yangshengtang, Ji Linong, director of endocrinology department of Peking University People's Hospital and director of Peking University Diabetes Center, said that the fasting blood glucose of elderly diabetic patients should be controlled at 7.0mmol/L, and the postprandial blood glucose should be controlled at10.0mmol/L. By controlling the fasting blood glucose and postprandial blood glucose levels, the risk of complications can be reduced.