The present invention provides a heavy current conductive device application method. The method comprises the following steps: at least one electrical element is fixed on a test device; the plug of the electrical element is connected with the electrode of the electrical element; a probe socket is connected with the test board of the test device, the probe socket and/or a probe are/is electrically connected with the test device through a conductive structure, and the position of the probe socket is in one-to-one correspondence with the position of the plug of the electrical element; and a test board is controlled to get close to the electrical element to allow the plug of the electrical element to be inserted into the probe socket and allow the probe to electrically connect with the electrode of the electrical element. According to the heavy current conductive device application method, the plug of the electrical element is installed on the electrical element, a probe socket uniformly fixed on the test board is coordinated with the electrical element to allow the structure of the conductive device to be simplified and allow the assembling process to be simplified, the conductivity is good, the rapid plugging can be realized prior to the test through controlling of the advance and retreat of the test board, and a plurality of electrical elements are tested at the same time to reduce the staff labor intensity and adapt to the automation detection requirement.