High-altitude insulator detection device

The invention relates to the field of electric power detection, and provides a high-altitude insulator detection device which comprises a lower frame and an upper frame which are arranged in parallel, a first shear fork is slidably arranged on a front side frame of the lower frame, the first shear fork is provided with inward pushing type clamping rods, and the inward pushing type clamping rods clamp an insulator after getting close to each other. A second shear fork is arranged on the front side frame of the upper frame in a sliding mode, the second shear fork is provided with a second external pulling type clamping rod, and the first external pulling type clamping rod and the second external pulling type clamping rod clamp the insulator after being far away from each other; the first outward-pulling type clamping rod and the second outward-pulling type clamping rod are provided with detection wires respectively, a distance measuring sensor is installed on the upper frame, the detection wires and the distanc