Prevention of asthma attacks in children is as follows: 1, need to avoid contact with allergens, such as dust mites, milk, seafood, etc., in the clinical discovery of such allergies, need to carry out this aspect of prevention, avoid contact with such substances; 2, pay attention to weather changes, to prevent cold, to avoid aggravating the infection, but also need to pay attention to avoid excessive fatigue and emotional changes; 3, strictly in accordance with the treatment plan developed by the local doctor, do not self 4.Strengthen physical exercise to improve the lung function and physical fitness of the child; 5.If asthma attack has occurred, go to the local hospital for treatment in time to avoid recurrence or aggravation of the disease. Asthma is prone to recurrence, therefore, the cooperation of physicians and parents is needed to overcome the disease together.