The utility model relates to the technical field of power equipment. The cross arm correcting regulator is simple. The device comprises a hoop, an adjusting support rod and a mounting piece, adjustingsupport rods are fixedly mounted on the left and right sides of the hoop respectively; the adjusting support rod comprises a first support rod, a connecting sleeve and a second support rod; threads opposite in rotating direction are arranged at the two ends of the inner wall of the connecting sleeve respectively, the upper ends of the first supporting rods are in threaded connection with the lower end of the connecting sleeve, the lower ends of the second supporting rods are in threaded connection with the upper end of the connecting sleeve, the lower end of each first supporting rod is fixedly connected with a hoop, and the upper end of each second supporting rod is fixedly connected with a mounting part. The device is reasonable and compact in structure and convenient to use, and has the advantages of being simple in structure, easy to operate and capable of achieving hot-line work through the arrangement of the hoop, the adjusting supporting rod and the installation piece.