Many parents often have questions about whether children with asthma can be vaccinated after their child has been diagnosed with asthma. In fact, vaccination is possible and necessary when asthma is not exacerbated. Vaccines play an important role in the prevention and treatment of infectious diseases and help reduce the incidence and mortality of infectious diseases. Children are the main target of vaccination, and all vaccines included in the immunization schedule should be administered. There are contraindications to vaccination, but most of them are relative contraindications. Vaccination should be contraindicated or suspended in the following cases: 1. Children with dermatitis, purulent skin disease, or severe eczema should not be vaccinated and should wait until they are cured; 2. Children with body temperature over 37.5℃ and swollen lymph nodes should not be vaccinated and should be vaccinated after the cause of the disease has been identified and cured; children with serious heart, liver, or kidney disease and active tuberculosis should not be vaccinated; 3. Children with abnormal development of the nervous system or Children with sequelae of encephalitis or epilepsy should not be vaccinated; 4. Children with serious diseases, severe malnutrition, severe rickets, congenital immunodeficiency or those undergoing immunosuppressive treatment should not be vaccinated; 5. Children should not be vaccinated during acute asthma attacks and should be vaccinated when their condition is in remission; 6. The polio vaccine should be given only after two weeks of recovery. Bronchial asthma is not an absolute contraindication to vaccination, and it is not necessary that a child’s asthma will be aggravated after vaccination. Vaccination should be postponed only during acute asthma attacks (wheezing, coughing, shortness of breath, chest tightness, etc.), especially when systemic glucocorticoids are applied. However, this does not mean that children with asthma cannot be vaccinated. Vaccination should be administered during the remission phase of asthma (long-term maintenance of inhaled asthma medication) and when the child is in good health.