The utility model provides a transmission line arrester device, including lightning arrester body, high -pressure side electrode, low -pressure end electrode, clearance adjustment subassembly, insulator foot, counter, post insulators and angle iron bracket. High -pressure side electrode and transmission pressure dangle the yoke plate to be connected, and the low -pressure end electrode passes through the clearance adjustment subassembly to be connected with lightning arrester body one end, and the lightning arrester body other end passes through the insulator foot to be connected with angle iron bracket, and the counter is fixed on angle iron bracket, and angle iron bracket is connected with the shaft tower, and the post insulators bracing is connected between lightning arrester body and angle iron bracket. The utility model is suitable for a friendship / the direct current line gap's of the different lightning arrester body length of different electric pressures installation has thatthe device is simple, a simple to operate, characteristics that the reliability is high.