Tracheal foreign bodies are a common cause of accidental death in children, mostly in children aged 1-5 years old, due to its sudden onset, rapid changes in the disease, the risk of a large, it is necessary for parents to understand this knowledge. Common foreign bodies in the trachea include watermelon seeds, peanuts, sugar cubes, coins, soybeans and small smooth toys. Asphyxiation can be caused by a foreign body completely blocking the trachea, which can be life-threatening in more than four minutes, and even if it is successfully resuscitated, it often leaves serious after-effects. Therefore, on-site first aid is very important. The following are several easy to grasp methods of treatment: 1, immediately plug a toothpaste or a similar toothpaste substitute, open the mouth, in order to discharge the foreign body from the mouth. 2, to the patient’s mouth to the mouth of the foreign body. 2, to the patient’s mouth into the index finger or a large cotton skewer, or toothbrush handle, straight to the pharynx, to stimulate its defensive deep breathing. 3, Try to make the sick person increase the abdominal pressure in the upper abdomen to remove the foreign body from the trachea. (1) The rescuer stands behind the patient, wraps his arm around the patient’s waist, uses the root back of the right thumb to top the patient’s upper abdomen, stacks the left hand on top of the right hand, and intermittently squeezes the rescued person’s chest and abdomen upward and backward, compresses the lungs with the help of diaphragm, and produces an air impulse to discharge the foreign body in the trachea. (2) When the patient fainted, it can be supine, the rescuer can kneel on the ground, face the patient, open the legs in its two tests, lean forward, hold the right fist, set the right fist in the sword protuberance straight below, the left palm pressure right fist, suddenly and rapidly downward toward the front in the direction of the vertical press which the epigastrium. At this time, the patient may vomit the stomach contents after being pressed, and at the same time, it is also possible to spurt out the foreign body infarcted in the trachea. In order to avoid re-aspiration of gastric contents, the patient should be made to lie on his/her side when coughing up the foreign body. 4, if the patient is a child, you can also implement the following three on-site first aid: (1) first aid rescuer: take a seated position, let the child face forward sitting in the rescuer’s lap, and then the rescuer with the middle and index fingers of both hands, force to the back of the upper abdomen above the squeeze the child, and then relax after the pressure, repeat. (2) For slightly older children, you can let them lie on the knees of the rescuer, head down, pounding their backs. (3) two rescuers, 1 can be lifted off the ground upside down, 1 hand patting the back, pulling out the pharynx, can make the foreign body quickly discharged. The above methods, are effective in the scene first aid, as long as you master the essentials, do not need special training, most can be successful. Of course, if unsuccessful, should be sent to the hospital quickly. In addition, if the hospital is very convenient, once suspected of tracheal foreign body can be immediately sent to the hospital rescue. In the case of children and adolescents, the patient can be immediately picked up on his side facing the person holding him, so that his head rests on the left arm of the person holding him. This embrace can let the foreign body more smoothly into the more thick and short right bronchial tube, to avoid the foreign body in the trachea up and down or long to live, and let the right side of the bronchial tube blockage, so that the left side can be moved to breathe, to go to the hospital to win the time to rescue. In conclusion, tracheal foreign body is one of the critical illnesses, we must grasp the time, as soon as possible first aid can be successful. Otherwise, it will be life-threatening or leave serious sequelae.