To observe the clinical curative effect of intensity modulated radiation therapy combined Shenmai injection in treating local non-small cell lung cancer.Methods:Selected 86 cases of non-small cell lung cancer(NSCLC)patients who treated in our hospital from September 2013 to August 2015.Divided patients in control group and treatment group，43 cases each group.Control group accepted simple intensity modulated radiation therapy，and treatment group accepted Shenmai injection treatment on the basis of control group.Observe the recent therapeutic effect of two groups.Compare KPS score and adverse reaction of two groups.Results:The total effective rate of treatment group was 81.4%，control group was 76.7%.Treatment group was higher than control group，but the difference had no statistical significance(χ2=0.281，P>0.05).After treatment，the KPS score improved cases of treatment group were more than control group，the difference had statistical significance(χ2=6.789，P<0.05).The adverse reaction cases of treatment group were less than control group.Weak，radiation esophagitis，radiodermatitis and leucopenia cases of treatment group were obviously inferior to control group，the difference had statistical significance(P<0.05).Conclusion:The curative effect of intensity modulated radiation therapy combined Shenmai injection was better than simple radiotherapy in treating NSCLC.