Ground cable junction box of electric submersible pump well

The utility model discloses a ground cable junction box for an electric submersible pump well, which is provided with a wiring terminal, the wiring terminal is fixed in an insulating terminal back plate through a high-voltage insulating terminal, the insulating terminal back plate is fixed on a cable-passing bottom plate, and a cable sealing body and an exhaust hole are arranged in the cable-passing bottom plate; a grounding wire pile is arranged in the support, the cable passing bottom plate is fixed to the upper end of the support, and the connecting ring plate is fixed to the periphery of the exhaust hole. An inlet wire and an outlet wire of an electric pump cable enter the upper portion of the cable passing bottom plate from the lower portion of the support through the cable sealing body and are connected with the wiring terminal. And a protective cover provided with a ventilation pipe is connected outside the connecting ring plate and covers the insulating terminal back plate and the cable sealing body w