By comparing the common-AC-bus test system and the common-DC-bus test system, the architecture of the drive motor test system of the new energy vehicle is introduced in detail. Combining with the requirements of the current OEM, the model selection of key components of the test system is completed. The upper computer LabVIEW completes the system control, data acquisition, curve plotting and report generation. According to the test results, the system has comprehensive functions, strong practicality and high reliability,which can achieve precise control and measurement and meet the performance and durability test of AC asynchronous motors or permanent magnet synchronous motors with related power levels.