The invention discloses an auxiliary dismounting platform suitable for a current transformer in an electrical switch cabinet. The auxiliary dismounting platform comprises a walking mechanism and a lifting mechanism; the walking mechanism is a crawler-type chassis assembly; the lifting mechanism comprises a three-axis linkage mechanical arm; the three-axis linkage mechanical arm comprises an X-axismechanical arm, a Y-axis mechanical arm and a Z-axis mechanical arm; the X-axis mechanical arm, the Y-axis mechanical arm and the Z-axis mechanical arm comprise ball screw mechanisms; the output endsof the ball screw mechanisms are connected with sliding blocks; the sliding blocks are used for connecting the X-axis mechanical arm with the Y-axis mechanical arm and connecting the Y-axis mechanical arm and the Z-axis mechanical arm; a supporting frame is transversely arranged on the sliding block of the Z-axis mechanical arm; a second Z-axis mechanical arm is mounted on the supporting frame; and an electromagnetic supporting platform is arranged on an output sliding block of the second Z-axis mechanical arm. According to the auxiliary dismounting platform suitable for the current transformer in the electrical switch cabinet, the working efficiency can be improved.