The invention discloses a protection device for climbing a power transmission tower and a using method of the protection device. The protection device for climbing the power transmission tower comprises an upper arm belt, a glove and a claw assembly. The upper arm belt can be fixedly tied on the upper arm of a human. A first hinge base is arranged on the upper arm belt. A connecting rod is hingedto the first hinge base. A longitudinal sleeve is arranged on the hand back side of the glove. The rear end of the claw assembly is connected with the connecting rod. The front end of the claw assembly forwards penetrates through the sleeve to stretch out. A barb is arranged at the front end of the claw assembly and bends towards the palm side of the glove. According to the climbing protection device for the power transmission tower, the hand of a worker can be hooked on a ladder when the worker has a rest in the process of climbing the power transmission tower so that the arm can be relaxed,and the safety of the worker can be ensured when the worker climbs the high tower, and aches of fingers can be relieved.