Insulin pump is an artificial intelligence device for continuous subcutaneous infusion of insulin, which is connected to the skin of the body through the insulin pump tubing to achieve the purpose of continuous insulin infusion, and the injection of insulin is through subcutaneous injection of insulin. The difference between using insulin pump and taking insulin injection mainly includes the following points: 1. Compared with subcutaneous injection of insulin, insulin pump is the insulin injection method that best simulates the physiological insulin secretion pattern. On the one hand, it continuously infuses basal insulin, on the other hand, it can infuse preprandial large doses, which is similar to the insulin secretion pattern of normal people.2. The injection method and dosage adjustment are more flexible, the dosage adjustment of insulin pump is flexible and precise, and insulin can be added at any time, and insulin infusion can be suspended at any time. It can control blood glucose well and avoid serious hypoglycemia.3. Fewer injections, subcutaneous injection of insulin may vary from 1-4 times per day, while insulin pump can be used for about 3-5 days for a single injection.