A foreign body accidentally inhaled from the larynx, trachea or bronchus is collectively referred to as a foreign body in the respiratory tract. A foreign body in the pediatric respiratory tract is a very critical condition. When a foreign body is inhaled into the respiratory tract, it can cause a violent cough, even coughing up blood, accompanied by breath-holding, shortness of breath, difficulty in breathing, blue lips and other symptoms, depending on the location of the foreign body can produce different symptoms. If the foreign body is embedded in the larynx, there are symptoms such as hoarseness and difficulty in breathing; if the foreign body is large and obstructs the common airway, it can suffocate or even die, and the tracheal foreign body is mostly active, and the main symptoms are paroxysmal cough and dyspnea. Pediatric tracheal foreign bodies endanger children’s lives, and the key is prevention: 1. First of all, children should be educated not to put small toys into their mouths, etc. Avoid laughing, crying or scolding children when eating; change the bad habit of eating while walking or playing while eating, it is best not to give children under 5 years old to eat melon seeds, peanuts, beans and other foods, eat watermelon can first remove the melon seeds; children taking pills is best to take the pills finely researched and then served, do not cries when the child hard to the mouth plug, so as not to inhale the trachea dangerous. 2, when found with a foreign body into the throat and trachea after, parents should let the child to keep quiet, do not cry. If the child coughs, do not stop it, sometimes by coughing, the foreign body can be coughed out, but when coughing, parents should not pat the child’s back, so as not to displace the foreign body. If a foreign body enters the respiratory tract, do not use your hands to pull it out or force it down with large pieces of food. To give first aid on the spot, lift the child’s legs so that the body is suspended, pat the child’s back with the palm of your hand, and cough out the smaller foreign body in the larynx or trachea with the help of coughing. If the situation is critical, the child should be immediately sent to the hospital for treatment.