Allergic rhinitis can be classified as seasonal or perennial. Children are prone to allergic rhinitis because they are growing and developing, their immune mechanism is not perfect and their resistance is relatively low. Its main clinical symptoms include nasal itching, sneezing, runny nose, nasal congestion, nasal reflux, and sudden coughing at night. Allergic rhinitis occurs more often in children as young as 5 or 6 years old. Parents should pay attention to the treatment of allergic rhinitis. Untreated allergic rhinitis in children in its early stages increases the risk of developing asthma in the future. The current findings suggest the concept of “one airway, one disease”. Allergic rhinitis and bronchial asthma are both type I allergic reactions and are very similar in terms of etiology, immunology and pathogenesis. Most of the asthma patients have allergic rhinitis symptoms before the asthma attack, and allergic rhinitis can also aggravate the asthma attack. The incidence of asthma can be reduced if effective preventive and therapeutic measures for allergic rhinitis are taken in the early stage of the attack. Therefore, parents should pay attention to allergic rhinitis in children and seek early diagnosis and treatment to prevent allergic rhinitis in children from developing into asthma.