Connection assembly and test system

The utility model discloses a connection assembly and a test system. The connection assembly comprises a bus; a first multi-way switch module; the relay module is electrically connected with the bus through the first multi-way switch module; a second multi-way switch module; and the output module is electrically connected with the bus and the relay module through the second multi-way switch module, and the output module is used for outputting a voltage signal of the bus or the relay module. According to the embodiment of the invention, the wiring error rate can be reduced, and the test efficiency is improved.