The utility model discloses a partial discharge test platform for high tension switchgear, test platform includes the industry frequency alternate current power, the voltage regulator, there is not dizzy testing transformer, the coupling capacitance, the divider, the ultra -high frequency antenna sensor, the luo shi coil, a D -dot ground sensor, the oscillograph, can reduce the corona interference signal of introducing test platform, improve the accuracy of partial discharge determination of position, furthermore, mark the volume of discharging, then use the ultra -high frequency antenna sensor respectively, luo shi coil and D -dot electric -field sensor carry out the simultaneous acquisition to the experimental wave form in the position of partial discharge defect, through the analysis, improve the accuracy of partial discharge position, and has a good application prospect.