Abstract:The design of automatic conduction test software based on the automatic test system of EMU. Firstly, the overall design idea of test software is introduced. Then the design of PC software, main control unit software and switch unit software are introduced in detail. Through the docking test with the standard EMU, the results show that the test software runs steadily, the functions of automatic conduction insulation test, rapid fault diagnosis, automatic conduction meter import and report management are perfected, and the test efficiency of the whole vehicle cables in the production process of EMU can be greatly improved.