If an accident occurs, how to give first aid at the scene of the accident with an amputated limb/finger and what first aid measures should be done to facilitate the subsequent replantation of the amputated limb/finger? The following article introduces several first aid measures. If the limb/finger is rolled by the machine, it should be stopped immediately and the severed limb/finger should be removed quickly, and the limb should not be removed by reversing the machine to prevent secondary injury. 2, the severed end of the hemostasis available clean dressing or fabric pressure bandage wound to stop bleeding, if necessary, a tourniquet, but cut once an hour to relax while finger pressure on the proximal arterial trunk to reduce bleeding, relaxation time of 10 – 15 minutes, accurate records on the tourniquet time to prevent excessive time to aggravate the injury. 3, the severed limb / finger cold storage method severed limb try to refrigerate preservation, do not immerse in any liquid, refrigerated to avoid direct contact with ice to avoid frostbite. The severed finger is wrapped with more than 8 layers of gauze, placed in a plastic bag without holes or medical gloves tightly tied bag mouth upwards, and then placed in an ice container for preservation. 4.Fast transportation The patient’s injured hand and severed limb/finger should be wrapped well, braked for pain relief, splinted and bandaged, and sent to a regular professional hand and foot surgery hospital for replantation surgery as soon as possible. Pay attention to the transport, lie down and elevate the injured limb/finger. If the patient is in shock, anti-shock treatment should be administered first, and then transferred when the condition allows.