Pediatric bronchitis is a lower respiratory tract infection, usually seen as a mixture of viral and bacterial infections. Most of them have symptoms of upper respiratory tract infection first, followed by coughing and coughing up sputum, rough breath sounds in both lungs on physical examination, and irregular dry and wet rales can be heard. First, the child is allowed to change position frequently and given more water to moisten the airway so that respiratory secretions can be easily coughed up. Bronchitis is not treated with antibiotics if it is caused by a viral infection. If a bacterial infection is suspected, it is best to check and confirm. Before confirmation, you can first use penicillin or cephalosporin antibiotics, and if it is a mycoplasma infection, then you should choose macrolide antibiotics, such as azithromycin or erythromycin. Children with bronchitis and cough mostly with phlegm should generally choose expectorants instead of cough suppressants, and are often treated with tranylcypromine hydrochloride and N-acetylcysteine to reduce phlegm. For children with combined wheezing, nebulizer therapy can be chosen. Commonly used drugs include budesonide, terbutaline, salbutamol, etc. For some allergic children, anti-allergy medications such as desloratadine drops or cetirizine drops can also be used depending on the child’s condition. In conclusion, pediatric bronchitis is a common respiratory tract infection, mostly seen in infants and young children, and children with immune deficiency, nutritional disorders, rickets, and abnormal bronchial structures are more likely to get this disease. After a clear diagnosis, we must actively follow the above treatment principles.