Objective To study the application of colloidal gold strip and gas chromatography to chlorvrifos in order to make sure the reliability of colloidal gold strip for determination of chlorvrifos residues in vegetables.Method The chlorvrifos of samples were detected by colloidal gold strip for semi-quantitative analysis,and determined by gas chromatography for quantitative analysis again.Then the results of two methods were compared.Results The negative samples detected by colloidal gold strip were not detected by gas chromatography,and the coincidence rate was 100%.The positive samples detected by colloidal gold strip were detected by gas chromatography,and the coincidence rate was 100%.The recovery rate of sample added cutoff value was 96%.Conclusion In comparison with gas chromatography,the colloidal gold strip method was simple,accurate,time-saving and fast.It could be a rapid method for determination of chlorvrifos.