The utility model discloses an auxiliary wiring device for a breaker test. The auxiliary wiring device comprises test wires, and an insulation sheath at one end of each test wire is wrapped with a soft copper tube the diameter of which is greater than the diameter of a secondary plug needle head of a breaker; the other ends of the test wires are exposed copper tubes; and the two test wires are connected through a hard insulation connecting rod and are parallel to each other. The auxiliary wiring device is advantageous in that the two test wires are separated by the hard rod, a phenomenon that a test instrument is damaged due to a short circuit of a joint during testing is prevented, the test wires are the soft copper tubes the insulation sheath wrapped diameters of which are greater than the diameters of the secondary plug needle heads of the breaker, the exposed ends of the test wires are connected with a test clamp, the other ends of the test wires tightly sleeve plug-in joints, and damage of secondary plugs of the breaker is effectively prevented.