For unopened insulin should generally be placed in the refrigerator at 2 ℃ ~ 8 ℃, taking care not to place in the freezer or close to the refrigerator cooling device. Opened insulin can be stored for 4~6 weeks in a room temperature environment not exceeding 30℃, and care should be taken to prevent exposure to sunlight during the process of placing, and at the same time, do not place it in a place that is prone to heat production, such as the kitchen and other locations, so as not to reduce the activity of insulin at too high a temperature. Insulin needs to be stored at the right temperature, not too high and not too low, and at the same time, it should be protected from light and used within the expiration date. The activity of insulin can only be maintained if it is stored correctly. It is recommended to read the instruction manual and follow the instructions for storage, or consult a professional physician or pharmacist.