Abstract: In view of problems of poor tools and low work inefficiency existed in present failure detection equipment of mine-used low-voltage feeder switch, a novel model DFKG-2012 integrated test-bed for mine-used low-voltage feeder switch was designed. The test-bed takes PLC as controller, and can detect and monitor switch performances of over-voltage, under-voltage, over-load, short circuit, break, leakage and other abnormal conditions through operating buttons upon the test-bed with configuration technology. Meanwhile, the test-bed can detect performances of variety of models of mine-used low-voltage feeder switch, and can quickly judge switch failure, which reduces workload of maintenance personnel.