The invention relates to the technical field of a circuit clearer, in particular to a foreign matter clearer of a power line. The foreign matter clearer comprises a main rod body, wherein a first rotation shaft is arranged at one side of the top of the main rod body, one end, far away from the main rod body, of the first rotation shaft is connected with two cutting bodies which are arranged in a staggered way, bottom parts of the two cutting bodies are respectively and rotatably connected with a first connection rod, the bottom parts of the two cutting bodies are connected with a first spring, one end, far away from each cutting body, of each of the two first connection rods is connected at a part in an intersection way by the rotation shaft and is connected with a first pull rope, a second rotation shaft is arranged at the other end of the top, relative to the first rotation shaft, of the main rod body, and one end, far away from the main rod body, of the second rotation shaft is connected with two clamping bodies which are arranged in a staggered way. The foreign matter clearer has the advantages of simple structure, reasonable design and the like, and is convenient to use, the complicated operation of cleaning a wound substance one by one can be effectively solved, and the working efficiency is improved.