The invention discloses a traditional Chinese medicine aerosol for preventing and treating infantile cold asthma. The traditional Chinese medicine aerosol is mainly prepared from honey-fried herba ephedrae, fructus schisandrae chinensis, fructus perillae, rhizoma cynanchi stauntonii, raw folium artemisiae argyi, folium eriobotryae, ramulus cinnamomi, apricot kernels, exocarpium citri rubrum, fried pheretima, folium pyrrosiae, rhizoma polygoni cuspidati, fructus citri, radix angelicae dahuricae, fistular onion stalks, folium mori, cardamom and licorice roots. The traditional Chinese medicine aerosol has the comprehensive effects of regulating and enhancing body immunity, resisting inflammation and allergies, reducing bronchial hyperresponsiveness and improving microcirculation, the relapse of the asthma is delayed, the stage of attack is delayed, the aerosol can directly act on tunica mucosa bronchiorum, and the local drug concentration is high; meanwhile, aerosol inhalation can humidify respiratory tracts and benefit secretion drainage, the drug availability is high, toxic and side effects are small, use is convenient, and the aerosol takes effect quickly and is worthy of clinical application and popularization.