Power transmission grounding wire falling off-prevention wire clamp

The invention provides a power transmission grounding wire falling off-prevention wire clamp. The power transmission grounding wire falling off-prevention wire clamp comprises an outer clamping body and an inner clamping body; the outer clamping body is provided with an outer clamping groove with a lateral opening; the inner clamping body is provided with an inner clamping groove with a lateral opening; the outer clamping body is further provided with a mounting groove; the inner clamping body is mounted on the outer clamping body through the mounting groove; a power transmission grounding wire passes through the outer clamping groove and the inner clamping groove; an elastic pressing device is arranged between the outer clamping body and the inner clamping body; and the elastic pressing device drives the outer clamping body and the inner clamping body to move relatively so as to tightly clamp the power transmission grounding wire. The outer clamping body and the inner clamping body can be rotatablely connected with each other; in rotation, a clamping portion is formed between the outer clamping body and the inner clamping body and can clamp the wire; and at the same time, under the effect of the elastic pressing device, a certain force is formed between the inner clamping body and the outer clamping body, such that the inner clamping body and the outer clamping body can be pulled tightly and firmly.