Abstract:To research on automatic testing technology, which includes cable breakover character, PDD (power distribution device) function of power supply, sensor performance, the communication state between IMC (integrated manage computer) and onboard relevant system, when the UMS (Utility Management System) equipment after installed, a set of ground testing system was designed. Test object and project were identified, then both hardware testing environment and the cable cross-linked with relevant equipment were designed. Testing software was developed based on LabWindows/CVI. Hardware and software were integrated and tested, and applied finally. The result shows, the testing system can carry overall automated testing on the equipment of UMS. After that, correct testing result and report were given. It has application and promotion value.