A welding test apparatus for testing a welding system including a welding feeder for drawing a wire to a welding torch or a welding carriage for welding while moving directly by receiving a control signal and DC power from a welding machine through a power signal cable according to an embodiment of the present invention A power conversion unit for receiving AC power and converting it into DC power supplied to the power signal cable, and a terminal into which the power signal cable of the welding feeder is inserted, outputting the DC power and welding the welding feeder status signal A power signal terminal for a feeder received from a feeder, a status notification unit notifying a welding feeder status according to a welding feeder status signal received from a power signal cable of the welding feeder, and a terminal into which one end of the power signal cable is inserted, the terminal comprising: A first disconnection test terminal for outputting DC power, and a terminal into which the other end of the power signal cable is inserted, the second disconnection test terminal for sensing the DC power output from the first disconnection test terminal.
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