The invention discloses an immunofiltration assay fluorescent quantitative detection method based on a high-sensitivity quantum dot; the immunofiltration assay fluorescent quantitative detection method comprises the following steps of: constructing a fluorescence immunofiltration array device by using the excellent fluorescent characteristic of the quantum dot in combination of a quantum dot fluorescence labeling technology and an immunofiltration array technology on the basis of optimizing constituent parts for the immunofiltration assay; and after immunofiltration array, detecting the strenght of fluorescent signals of the quantum dot and a quality control dot by using a fluorescence quantometer, correcting the fluorescence strenght of the quantum pot by using the quality control dot, and further realizing the quantitative detection of a tested object according to a standard curve obtained by using the fluorescence quantometer. The method is simple, rapid, accurate, low in cost and high in sensitiveness. Comapred with the conventional collodial gold immunofiltration array method, the immunofiltration assay fluorescent quantitative detection method has the advantages of good labeling stability, low non-specificity, high sensitivity, wide linear range and accurate quantification. The method is suitable for samples such as serums, urine, spittle, excrement and the like and can be applicable to the detection of serious illness, poisons, food safety and the like.