Train brake test actuator

The utility model discloses a train brake test actuator comprising a bottom box, the top of the bottom box is fixedly provided with a clip-shaped plate, the top of the clip-shaped plate is provided with a sealing cover in a clamping manner, and the top of the sealing cover is provided with an antenna; the air inlet pipe is fixedly installed on the front side of the bottom box, the flange is fixedly installed at the air inlet in the front side of the bottom box, the air source pressure sensor is fixedly installed on one side of the flange, and the air inlet pipe is fixedly installed at one end of the air source pressure sensor. A brake test function can be completely and independently completed to achieve an effect of using one for standby one, and a train brake and total wind test can be simultaneously carried out, so that the test time is saved; meanwhile, a pneumatic stop valve is additionally arranged on a main gas circuit, so that various pressure maintaining test environments are consistent with a train