The invention relates to a disassembling and overhauling tool for equipment in a transformer substation, in particular to a sleeve wrench special for disconnecting switch moving contact overhaul. The sleeve wrench special for the disconnecting switch moving contact overhaul comprises a fixing seat (1), a fixing seat handle (10) is arranged on one side of the fixing seat (1), a plastic clamping sleeve (4) is tightly attached in the fixing seat (1), a press plate (6) is arranged on the plastic clamping sleeve (4), the plastic clamping sleeve (4) is fixed in the fixing seat (1) through an embedded base disc (7) on the bottom of the fixing seat (1), and a torque wrench dedicated fixing disc (8) is arranged on the bottom of the embedded bottom disc (7). The sleeve wrench special for the disconnecting switch moving contact overhaul can fully solve the problems that a GW16 type disconnecting switch moving contact is inconvenient to disassemble and the like, overhaul personnel can be prevented from using brute force to damage the surface and the threads of the moving contact, safe reliability of working of the personnel can be improved, working intensity can be lowered, working time can be saved, and efficiency can be improved.