The treatment of diabetes at the age of 30 is mainly lifestyle control and medication, insulin injection if necessary, and regular monitoring of blood glucose, as follows: 1. Lifestyle control: according to the patient’s age, nutritional status, activity intensity, comorbidities and complications, etc., formulate an individualized diet plan, low-salt, low-sugar, low-fat diet. And combine with the condition to formulate individualized exercise program, mainly aerobic exercise, exercise as much as possible regular, fixed, to maintain a healthy weight and body shape. 2. Medication: Commonly used medications for diabetes include metformin, acarbose, glimepiride, etc. Insulin can also be injected subcutaneously for treatment. Patients should not take medication on their own, and it is recommended that patients go to the hospital in a timely manner, under the guidance of the doctor, and monitor their blood sugar on their own on a daily basis.