The invention discloses a method for an automatic test device to realize a matching test. The method comprises the following steps: the first step: forming a text vector comprising a plurality of repetitive vector sections, each of which comprises an input and a corresponding expected output of a circuit to be detected; the second step: running the text vector for the circuit to be detected by the automatic test device, comparing an actual output with the expected output and outputting a comparison result in terms of a file; and the third step: analyzing an output file: the matching test is proved to be successful if the actual output of at least one vector section is identical with the expected output, or else, the matching test is proved to be unsuccessful. The method can cause the automatic test device having no or only having a simple matching test function to realize the matching test function, thus meeting test requirements of some special chips and expanding the application ranges of the automatic test device.