The utility model discloses a GIS partial discharge positioner, including GIS casing and conducting rod, the outer wall of GIS casing is with one deck insulating film, last the pasting of insulating film has the one deck electrode slice, the electrode slice is connected with the matched impedance, the electrode slice still is connected through the positive going input end of wire with operational amplifier, the GIS casing is still established ties there is ground resistance, ground resistance is not connected with ground through the ground connection inductance, GIS casing outer wall still is equipped with the metallic shield cover, insulating film, the electrode slice, the matched impedance, ground resistance, the ground connection inductance sets up at the metallic shield cover insidely, metallic shield covers ground connection, operational amplifier's negative sense input is connected with the metallic shield cover, operational amplifier's output is connected with the singlechip through sampling circuit, the singlechip carries out data transmission through GPRS communication circuit and remote terminal. The utility model discloses the interference that can stop external signal realizes the remote testing, has good application prospect.