The invention relates to a special junction pole for testing the mechanical characteristic of a circuit breaker. The special junction pole comprises an upper junction pole, a middle junction pole anda lower junction pole which are successively connected. A clip is arranged at the upper end of the upper junction pole. Lower connection parts are arranged at the lower ends of the upper junction poleand the middle junction pole. Upper connection parts matching the lower connection parts are arranged at the upper ends of the middle junction pole and the lower junction pole. A wire is arranged between the upper connection part and the lower connection part located in the middle junction pole. A wire is disposed between the lower connection part and the clip located in the upper junction pole.The internally communicating junction poles replace an original test wire. In use, it is just required to connect the upper junction pole, the middle junction pole and the lower junction pole so as toachieve a purpose of installing the test wire while erecting the poles. It is very convenient to use and fold the special junction pole. The junction poles are connected via internal wires so as to be connected with a circuit breaker instead of the test wire. The special junction pole is firmly connected and cannot fall off.