The utility model relates to a special tool for disassembling an isolating switch touch finger and particularly relates to a special device for disassembling isolating switch touch fingers positioned on a high-voltage transformer substrate and an outdoor high-voltage distribution circuit. The special tool comprises a rack, a bi-directional threaded rod, a handle, a left clamping block, a right clamping block, a left clamping groove, a right clamping groove and a touch finger mounting assembly fixing bracket, wherein the bi-directional threaded rod is arranged on the rack, the handle is arranged at one end of the bi-directional threaded rod, the left clamping block and the right clamping block are arranged on the bi-directional threaded rod and connected with the bi-directional threaded rod by threads, the left clamping groove is arranged on the left clamping block, the right clamping groove is arranged on the right clamping block, the touch finger mounting assembly fixing bracket is arranged on the rack clamped between the left clamping groove and the right clamping groove, and an ejector rod is arranged at one end of the touch finger mounting assembly fixing bracket. According to the special tool, a stable wedging point is provided for the disassembly of the isolating switch touch finger, the mounting process is simplified, and the work efficiency and the safety factor are improved.