The utility model discloses a horizontal obstacle avoidance structure of a power transmission line inspection robot along a ground wire. Machine body, the machine body is connected with a lifting rodassembly. the lifting rod assembly comprises a lifting rod capable of lifting up and down relative to the machine body; the upper portion of the lifting rod is connected with a control table, the control table is connected with a rotating rod assembly, the rotating rod assembly comprises a rotating rod rotationally connected with the control table, the rotating rod comprises a vertical section anda side face extending section extending from the top end of the vertical section to the side face, and the side face extending section is connected with a traveling wheel. According to the utility model, the console is slightly lifted upwards for a certain distance through the ascending of the lifting rod, so that the lower edge of the traveling wheel is higher than the ground wire, the travelingwheel is convenient to open and rotate, the rotating rod rotates, the traveling wheel rotates along with the rotating rod, the traveling wheel is opened, and the traveling wheel is separated from theground wire and the machine body to avoid obstacles in sequence, thereby avoiding obstacles in the horizontal direction.