The invention discloses an overhead power transmission line wire jumper hooking cable clamp semi-automatic replacement tool. The tool includes a hooking cable clamp elastic fixing device, a hooking cable clamp cover plate spring fixture, a remote electric operation wrench and a magnetic sleeve. The hooking cable clamp elastic fixing device and the hooking cable clamp cover plate spring fixture areutilized to place a hooking cable clamp onto a wire, and then the magnetic sleeve and the electric wrench are utilized for tightening. The replacement tool is highly integrated in operation procedures, semi-automation is achieved on the basis of simple manual operation, the operation is simple and convenient, and a traditional operation method in which staff need to directly touch wire jumpers after the electric potential is equal or the electricity is cut off is changed; the operation efficiency and safety are greatly improved, and the development of lived operation is boosted.