The invention relates to the technical field of a replacement tool used for an electrified operation of an insulator chain, and discloses a socket fixing tool used in the electrified operation. The socket fixing tool comprises a shackle head and an insulating operational rod, wherein the shackle head comprises a U-shaped shackle body and a connecting base rod; the right part of the shackle body is bent downwards to form a downward opening, and the shackle body can be clamped in a shackle clamping grove outside the middle part of a socket clevis; the lower end of the left part of the shackle body is fixedly connected with the upper part of the connecting base rod, or the left part of the shackle body is connected with the upper part of the connecting base rod into one body. The socket fixing tool is reasonable and compact in structure and convenient to use; the socket of the socket clevis is fixed and supported by the shackle body, so that the inclination and the sliding and releasing of the socket clevis is prevented when an M-shaped pin is mounted and disassembled; the socket fixing tool is applicable to a connection operation of the socket clevis and the composite insulator chain along the direction of a socket slot hole perpendicular wire; the replacement of the insulator chain in the electrified operation can be realized; elimination of faults can be achieved in time; power supply reliability is realized; and in addition, the socket fixing tool has obvious social and economic benefits, as well as the safe, labor-saving, simple and convenient, and efficient characteristics.