Respiratory tracheal foreign bodies are relatively common in life and can easily result from the smoothness of the foreign body itself or from bad habits when eating. A tiny foreign body entering the trachea will produce a violent irritating choking cough, and a movable foreign body can move with the airflow and can be discharged through violent coughing. If obvious respiratory distress occurs, it should be quickly removed by laryngoscopy or bronchoscopy. Part of the foreign body can be discharged with the cough reflex, in the trachea will not be digested by themselves, stay longer can cause lung infection, need to be timely surgical removal. Do not bite the foreign body in your mouth in daily life to prevent accidental inhalation. Once a foreign body enters the trachea, try to cough it out of the body, if you can’t cough or ineffective coughing, you can use the abdominal impact method under the diaphragm to expel it. It is recommended to do so under the guidance of a doctor.