The invention relates to an outdoor isolation switch contact adjustment tool, in particular to an isolation switch contact adjustment device. When an isolation switch contact is switched on in place, a contact is knocked to be switched on through repeatedly breaking and closing by a constructor or by using an insulation rod to cause contact damage. The tool for adjusting the contact after the isolation switch is switched on, provided by the invention, comprises a clamping part and a transmission part, wherein the clamping part is a groove-shaped clamping main body composed of a bottom plate, a static press plate and a side top plate, a movable press plate is arranged in a groove, a first connector is fixedly arranged at a lower part of the bottom plate, a spiral top rod of the transmission part is matched with the side top plate through a thread, one end of the spiral top rod is rotatably matched with the movable press plate, the other end of the spiral top rod is hinged with a connection rod by a rotation shaft A, the other end of the connection rod is hinged with a second connector by a rotation shaft B, and the rotation shaft A is perpendicular to the rotation shaft B. The tool has the advantages that a worker stands on the ground and can operate, the tool is safe, reliable, safe and rapid and is gentle in action, and the contact cannot be damaged.