The utility model discloses a safety improvement structure of a ground wire. The safety improvement structure comprises a hollow insulating rod, a hook head fixed at the top end of the insulating rod, a cable core connected to the bottom of the hook head and located in a hollow cavity of the insulating rod, and the ground wire connected with the cable core and located outside the insulating rod. The insulating rod is reasonable in structure and convenient to use, a copper wire with an insulating layer with withstand voltage of more than 15kV directly penetrates into the insulating rod, one end of the copper wire is connected with the hook, and the other end of the copper wire is connected with a copper wire at a three-phase short circuit position. During installation, because the force bearing fulcrum is changed, the force bearing point is transferred to the hand from the hook head at the top of the insulating rod, the operation is labor-saving when the live-line equipment is connected, the human body is always in a safe state even if an operator tightly holds the insulating rod in the arm, and the safe reliability and the working efficiency of the electric wire connection work are improved.