Abstract:Objective : To discuss the effect of integrated traditional Chinese and Western medicine on Th1/Th2 cytokines level in children with asthma. Method : Children with asthma were randomly divided into control group and treatment group. The control group was given Montelukast Sodium tablets for 4 mg (2-5 years old) or 5 mg (6-14 years old), once every night before sleeping. At the same time, the treatment group was given Pingchuan water decoction additionally for one tie per day , in four to six-divided doses for eight weeks. On the other hand, groups of health children were selected as blank control. Before and after treatment, the level of IL-4, IL-13 and IFN-γ were detected by elisa from 3 mL of venous blood. Result : Before treatment, IL-4 and IL-13 in two groups were obviously higher than healthy group, but IFN-γ was lower (P<0.01,P<0.05). After eight weeks, IL-4 and IL-13 in treatment group went down, but IFN-γ increased. And there were significant different compared with the control group (P<0.05). Conclusion : Treating children asthma by integrated traditional Chinese and western medicine can obviously reduce IL-4 and IL-13, increase IFN-γ, and therefore lighten the airway inflammation, prevent asthma attacks effectively.