The utility model relates to a power equipment technical field is an electric power grounding wire winding and unwinding device, and it includes base, containing barrel and receipts line cylinder, is fixed with containing barrel on the base, installs through the bearing outside containing barrel and to receive the line cylinder by the pivoted, and the top -down interval is equipped with the cable standing groove on the outer wall of receiving the line cylinder, and the bottom of this cable standing groove is the arc, is fixed with the spacing boss of round in the bottom of receiving the line cylinder. The utility model discloses when using, at first pass the step hole to the earthed pole and put into containing barrel, rotate again and receive the line cylinder, coil the cable in the cable standing groove, it is downthehole at the step with two card fork clip dresses at last. Like this, the earthed pole has not come out in just can not following the bucket, when reusing, extracts the card stopper and can take out earthed pole, convenient and practical. When the good back of cable dish, with hook rotate to receiving the line cylinder outside and spacing by the dog, then hang ground terminal on the couple, in a confused state of mind put impaired problem with regard to ground terminal not appearing.