Objective： To analyze the effect of standardized nursing model com bined with Xuanjiang Huoxue tang for children with cough variant asthm a and its effect on indexes of blood gas analysis.Methods：Selected 180 cases of children with cough variant asthm a as study subjects，and divided theminto the study group and the control group according to random num ber table method，90 cases in each group.The control group received routine nursing model com bined with Xuanjiang Huoxue tang for treatment，while the study group received standardized nursing model combined with Xuanjiang Huoxue tang.Compared the clinical effect and indexes of blood gas analysis in the two groups.Results：The total effective rate was 100%in the study group and was 94.44%in the cortrol group，there being no significance in the difference( P ＞0.05).The disappearance time of the clinical symptoms including w heeze sound，cough and bubble sound in the study group was obviously shorter than that in the controlgroup( P ＜0.01).The indexes of blood gas analysis，including PaO 2 ，PaCO 2 and HCO 3 - in the two groups were improved when compared with those before treatment( P ＜0.05)，and those indexes in the study group were obviously superior to those in the control group( P ＜0.05).Conclusion：The therapy of standardized nursing model com bined with Xuanjiang Huoxue tang can improve the clinical symptoms and indexes of blood gas analysis in children with cough variant asthm a.It is safe，reliable and worthy of promotion in clinicalpractice.