With the increase of the incidence of diabetes, China has entered the “sugar era”, but many people have a deep misunderstanding about the insulin treatment of diabetes. Many diabetic patients “talk about insulin color change”, think that insulin is a “drug”, will be “addiction”, once the application of insulin is equal to on a road of no return. Many patients refuse to take insulin, or miss an important opportunity for the treatment of diabetes, or poor blood glucose control leads to major diseases such as cerebral infarction, myocardial infarction and diabetic foot, which seriously reduces the long-term quality of life of diabetic patients and brings heavy economic burden to the family and society. In this work, we aim to through simple analogy and pictures, to generally introduce the role of insulin and its or long-term medication discontinuation of reason, hope everybody can correct understanding of diabetes insulin treatment, so that the timely and effective control of diabetes, reducing the occurrence of diabetes complications and development, improve the quality of the long-term survival of patients with diabetes. Healthy China, you and me together!