Type 1 diabetes refers to type 1 diabetes mellitus, and a good glycemic control method for type 1 diabetes mellitus is insulin therapy, as well as attention to life management and so on. 1. Insulin therapy: the main cause of type 1 diabetes is absolute insufficiency of insulin secretion, so it is necessary to control blood glucose through exogenous supplemental insulin. The common program is basal insulin plus mealtime insulin, and the common injection site is the abdominal wall injection, followed by the upper arm, thigh, buttocks and so on. 2. Adjusting diet and proper exercise: Type 1 diabetes patients need to pay attention to diet and exercise while injecting insulin on a daily basis. It is not recommended to eat too much high-sugar, high-calorie, high oil food, and it is recommended to eat a diet of low-sugar, low-salt and low-calorie. It is also necessary to exercise appropriately, and the specific amount of exercise should be judged in conjunction with one’s own physical condition. Type 1 diabetes also requires regular blood glucose measurements on a daily basis, and if the blood glucose continues to rise, it is recommended to seek medical attention in a timely manner.