Relay contact performance is an important indicator of the performance of the relay, which directly determines the stability of the relay protection device. In the type test based on IEC60255-1 and DL/T 478-2013, there is no specific test method in China. This paper to IEC60255-1 and DL/T 478-2013 contact performance test as a basis, in the limit of relay contact capacity test as the main object of study, research and design a set of performance test of relay contact automatic testing device, improve the test method. After many practical tests, the device is stable, efficient and reliable, and basically meets the needs of the type test based on IEC60255-1 and DL/T 478-2013.