Objective:To observe the curative effect of Budesonide and ventolin inhalated in treatment of infant bronchiolitis.Methods:114 patients randomly divided into two groups.56 patients were treated with the therapy combining with Budesonide and Ventolin Susension for Inhalation.58 patients were treated with the routine therapy combining with Aminophyllini as control group.Results:It showed that symptoms if cought and asthma were obviously relieved by Budesonide and ventolin rates were 92.9% and 72.4% in the test group and control group.Conclusions:It showed that Budesonide and Ventolin inhalated is signifiable shorten day of be hospitalizedand improved curative rates,there was sticking difference between the Aminophllini