Objective To observe the effect of nine respiratory tract infection pathogen IgM antibodies test,and guiding signifi-cance of treatment.Methods A total of 1 000 children who had respiratory tract infection were collected in this study.Children se-rum were analyzed with detection reagent of nine respiratory tract infection IgM antibody pathogen and ILF,respectively.Compa-ring the results of two methods,the accuracy of nine respiratory tract infection pathogen IgM antibody was analyzed and observed its guidance to treatment.Results Two measures have close result.917 children in 1 000 cases recover quickly through symptomat-ic treatment.21 children choked and 2 of them died because of multiple organ failure.62 children Improved and left hospital through long time treatment.Conclusion Nine respiratory tract infection pathogen IgM antibody test can detect multiple pathogens quickly with high specificity.and it suits Basic level hospital with positive social and economic benefits.