The appropriate temperature for preserving the amputated limb is 4 degrees Celsius, under this temperature condition, the blood vessels and nerves metabolize slower, the damaged blood vessels and nerves degeneration is delayed, which is conducive to the success of limb replantation. Preservation of amputated limbs in addition to the preservation of temperature, but also pay attention to avoid contamination, wrapped in clean or sterile dressings, and sealed in a plastic bag, and then placed in a container with a lid, surrounded by ice, pay attention to do not directly on the limb on top of the ice, because too low a temperature will lead to severed limbs with frostbite or cellular edema, which will greatly reduce the chances of successful reimplantation. Also note that the severed finger should not be immersed in alcohol, disinfectant water and other items for preservation, because these will destroy the tissue structure of the severed finger, affecting the survival rate of reimplantation; also note that the survival rate of reimplantation of the severed finger is not only the appropriate temperature, but also as early as possible to carry out reimplantation of the severed finger, the golden time is generally 6 to 8 hours after the injury.