OBJECTIVE： To compare therapeutic efficacy and safety of budesonide or beclometasone combined with terbutanline in the treatment of acute attack of mild and moderate asthma in children. METHODS： A total of 110 children with mild and moderate asthma were randomly divided into group A （55 cases） and group B （55 cases）. Based on routine treatment， group A was given Terbutaline sulphate solution for nebulization 1 mL， nebulization inhalation， twice a day+Budesonide suspension for inhalation 2 mL， nebulization inhalation， twice a day. Group B was given Terbutaline sulphate solution for nebulization （same usage and dosage as group A）+Beclomethasone dipropionate suspension for inhalation 2 mL， nebulization inhalation， twice a day. Treatment courses of 2 groups lasted for 7 d. Clinical efficacies， symptoms and signs disappearance time， hospitalization time， asthma relief rate as well as symptoms and signs scores， peak value expiration velocity of flow （PEF）， the occurrence of ADR were observed in 2 groups. RESULTS： There was no statistical significance in total response rate， symptoms and signs disappearance time， hospitalization time， asthma relief rate or the incidence of ADR between 2 groups （P＞0.05）. After treatment， symptoms and signs scores of 2 groups were significantly lower than before， while the PEF were significantly higher than before， with statistical significance （P＜0.05），but there was no statistical significance between 2 groups （P＞0.05）. CONCLUSIONS： Based on routine treatment， budesonide or beclometasone combined with terbutaline sulphate can be used for acute attack of mild and moderate asthma in children. They are similar to each other in therapeutic efficacy and safety.