Abstract: 10 kV grounding wire is often used in substation equipment maintenance safety measures must tools, the existing commonly used substation 10 kV grounding wire is the flat spiral grounding wire. During the use of such 10 kV grounding wire, there are often slippage, slippage or displacement of the wire clamp, and it is difficult to successfully complete the tightening operation. At the same time, under the traction of gravity and the action of the clamp gap, it takes more time to tighten the 10 kV grounding wire each time, and the working efficiency is low. Therefore, through the development of 10 kV ground wire auxiliary disassembly tool, it can effectively prevent the 10 kV ground wire clamp from sliding easily when it contacts the copper bar at the beginning, and can effectively prevent the slippage or displacement that is easy to occur during the tightening of ground wire clamp.