Multi-channel resistance bridge performance testing device

The utility model aims to provide the multichannel resistance bridge performance testing device which can test resistance bridge products in batches, is high in integration level and does not occupy too much space. The device comprises a test board card and an adapter board card which are connected with each other, the test board card is provided with a communication processing module communicated with an external computer, and the adapter board card is provided with a plurality of test channel switching modules electrically connected with the communication processing module. The test channel switching module comprises a plurality of groups of detection butt-joint assemblies and a plurality of groups of multiplexers, the multiplexers are connected with lines of the detection butt-joint assemblies for on-off switching, and connecting terminals of the detection butt-joint assemblies are connected with a to-be-tested product. The output ends of all the detection butt joint assemblies of each test channel switchi