Abstract: The cabbage and soil of test area were used as materials.C abbage used classic spectrophotometric method with phenol disulfonic acid and the s0il select flow injection analysis to measure the nitrate content, respectively compared with quick test procedure, discussion quick-test procedure of the accuracy of the nitrate content of vegetables and soil . The conclusion showed that there was no significant difference between the soil nitrate assay results of flow injection analysis and quick test procedure;when the vegetable samples were extracted and filtrated as the pretreatment procedures of standard method, there were no significant differences between quick test procedure and spectrophotometric method with phenol disulfonic acid, their coefficient of determination being up to 0.9, And there was no significant difference between the measured values of the two methods. Through a comparative study of the two methods, recommend quick-test procedure to measure nitrate with regards of its simple operation and accurate outcomes.