The utility model discloses an insulator detection device convenient to high altitude construction, including insulator detecting device and insulating bar, characterized by, insulator detecting device's bottom is provided with first connector, be provided with quincunx sand grip on the first connector side, be provided with first through -hole in the middle part of the first connector, insulatingbar's one end is provided with the second connector, second connector side is provided with quincunx recess, is provided with the second through -hole in the middle part of the second connector, thesecond connector is fixed through the bolt that passes first through -hole and second through -hole with first connector. The utility model discloses a detecting device and first connector pass through the installation of screw thread mode together, and insulating bar adopts the detachable structure, only need can accomplish the detection function in subaerial operation, and not only convenient touse, security are high, and detection accuracy is high moreover.