To examine the curative effect of Fuzheng Fangxiao Formula in treating Bronchial Asthma in catabatic period.Methods:Eighty patients with Bronchial Asthma in catabatic period were selected from our hospital( July 2013 to February 2015),then randomly divided into control group and observation group,with 40 cases in each.The control group were treated by suction nimesulide overlapping (glaxosmithkline,H20140164) 50/250/1 time,2 times/d treatment.On this basis,patients in the control group were treated by Fuzheng Fangxiao formula.Lung function,effective rate,recurrence rate of the two groups were compared.Results:The total effective rate of the treatment group and the control group is 95.00% vs 80.00%,χ2=4.129,P=0.042).After treatment,the PaO2 and PH values of the two groups were higher than those before treatment,while the PaCO2 value was lower than before treatment,but the improvement of the above indexes was more significant in the treatment group(P<0.05).Also,FEV1/FVC,FVC and FEV1 were higher in the two groups after treatment than before treatment,treatment group was much significantly improved than the control group (P<0.05).Besides,after treatment,the symptoms and signs of the treatment group disappeared earlier than the control group (P<0.05).In addition,the recurrence rate in the observation group was 2.5% and that of the control group is 25.0% (P<0.01).Conclusion:Fuzheng Fangxiao Formula has significant effect in treating Bronchial Asthma in catabaric period.It can effectively improve the patients’ pulmonary function and clinical curative effect as well as reduce recurrence rate,which is worthy of popularization and application in clinic.