If a fracture occurs, life saving is the primary principle. 1. unconscious patients should keep the airway open and remove foreign bodies from the oropharynx in a timely manner. 2. if the fracture is mild and without a wound, cold compresses should be applied when available without swelling, using ice water, ice cubes or freezing agents on the fracture site to prevent deformity and swelling. The ice pack should be separated from the skin with a towel or cloth, and direct contact between the ice pack and the skin is prohibited to avoid frostbite, and the ice pack should not be applied for more than 20 minutes.3. Patients with open fractures with wounds can use clean sterile gauze for compression, and if the compression does not stop the bleeding, a tourniquet can be used to ring the proximal end of the wound to stop the bleeding. But be sure to record the time of tying the compression band and relax it every 40-60 minutes for 1-2 minutes to avoid prolonged ischemia and necrosis of the limb.4. If you encounter a situation where the fracture end is exposed you should continue to keep it exposed and not put the fracture end back in place to avoid bringing bacteria into the deep part of the wound to cause deep infection.5. You should fix it promptly and correctly, quickly find a splint, or anything items that can be fixed to hold the fracture in place, and the fixation should not be too tight. The board and the limb should be padded with loose items, and the length of the deck should be longer than the injured area and be able to exceed or support the joint above and below the wound. If no template is available you can also use items such as branches, rolling pins, umbrellas, cardboard shells, etc. instead. If nothing can be found you can use a cloth bag to tie the fractured limb to the body, the fractured upper limb is fixed to the chest wall so that the forearm hangs over the chest and the fractured lower limb can be fixed to the good side of the limb.6. Patients with fractures of the spine, waist and lower limbs must be transported on a stretcher and must confirm the condition of the injured person before carrying the patient, do not move or move the injured person’s fracture to avoid secondary injury.