The utility model provides a GIS partial discharge tests dedicated appurtenance. This GIS partial discharge tests dedicated appurtenance is including probe clamp, universal corner platform, telescopiclink and supporting legs, the probe presss from both sides threaded connection and is in the upper portion of universal corner platform, universal corner platform threaded connection is in the top oftelescopic link, the bottom of telescopic link with the supporting legs is pegged graft, the probe presss from both sides including a workstation and installs the probe hasp of workstation one end, the other end integrated into one piece of workstation has a buckle, universal corner platform includes the columniform base and articulates revolving stage on the base, the telescopic link is made byinsulating material, the telescopic link connects the combination by two at least pipe joint rod covers, the pipe pole can steplessly stretch out and draw back, the supporting legs is the arc. This GIS partial discharge tests dedicated appurtenance has design science, portable, simple easy operation, advantage such as laborsaving safely.