The utility model provides a cable plugging device, which relates to the technical field of electric power appliances, and comprises a transmission device and a fixing device, when the cable pluggingdevice works, a worker enters a cable trench, aligns the fixing device with a cable wiring position on a switch cabinet, then fixes the head of a cable on the fixing device, and then withdraws the worker from the cable trench; and then the transmission device is started, so that the fixing device moves along the extension direction of the transmission device, and the purpose of inserting the cableinto the cable wiring position on the switch cabinet or pulling out the cable from the cable wiring position on the switch cabinet is achieved. According to the arrangement mode, a worker does not need to operate in a cable trench with a narrow space for a long time, so that the operation of the worker is more convenient, the construction period is shortened, and the safety is improved. In addition, by means of the arrangement mode, errors generated when the cable is in butt joint with the switch cabinet are effectively reduced, and the working efficiency is improved.