The invention discloses a 10kV overhead line lightning protection ground wire support, which comprises a circular hoop, a supporting rod, a first supporting arm, a fixing rod, a second supporting arm,a T-type supporting plate and circular hoops, wherein the supporting rod is welded on the side surface of the circular hoop; the first supporting arm is welded in the middle part of the supporting rod; two ends of the fixing rod are welded onto front ends of the supporting rod and the first supporting arm; the second supporting arm is welded onto the upper part of the supporting rod; the T-type supporting plate is connected onto the front top part of the first supporting arm through a bolt; and the bottom parts of the circular hoops are welded onto the top parts of the T-type supporting plateand the second supporting arm. The structure is simple, the design is reasonable, the pure metal support fixes the lightning protection ground wire and can bring a large amount of lightning to the ground at the moment of an accident, happening of tripping and power failure accidents can be reduced, the power supply reliability is improved, and due to the design of two supporting arms, the supportcan be connected with transverse and longitudinal lightning protection ground wires.