The utility model relates to an electrical device, in particular to a tool for disassembling and assembling a contact finger of a high-voltage fuse. The tool for disassembling and assembling the contact finger of the high-voltage fuse comprises a clamping portion, supporting rods, a connecting plate and a lead screw, wherein the clamping portion is provided with a U-shaped opening, the supporting rods are fixedly installed on the clamping portion, the connecting plate is fixedly installed on the supporting rods through bolts, a through hole is formed in the middle of the connecting plate, a nut is fixedly installed in the through hole of the connecting plate, the lead screw is installed on the nut, the lead screw comprises a contact, a cylindrical portion and a hinge pin, the contact is installed at one end of the lead screw, the cylindrical portion and the hinge pin are arranged at the other end of the lead screw, a hinge pin hole is formed in the cylindrical portion, and the hinge pin is arranged in the hinge pin hole in a penetration mode. The tool for disassembling and assembling the contact finger of the high-voltage fuse has the advantages that the tool is light in weight, flexible in use and simple to operate, the labor intensity is reduced, the purpose that the time spent on replacement of a fusion tube is shortened is achieved, the work efficiency is improved, the defect that working at heights is high in difficulty and high in danger coefficient is overcome, safety pressure caused by multi-person operation is avoided, and reliable guarantee is provided for safe operation of power equipment.