The utility model provides a breakdown protector measuring system and a breakdown protector measuring instrument. The breakdown protector measuring system comprises a multi-waveform generator, a boosting transformer, a voltage doubling rectifying circuit and a shaping filter circuit. The boosting transformer, the voltage doubling rectifying circuit and the shaping filtering circuit are connected in series; the high-voltage input end is connected with the multi-waveform generator, and the high-voltage output end is connected with the shaping filter circuit. The problems that the waveform obtained when a breakdown protector detector detects a breakdown protector is simple, and the actual overvoltage condition is simulated through a method are solved. The boosting transformer, the voltage doubling rectifying circuit and the shaping filtering circuit are connected in series, multi-wave simulation test high-voltage output is achieved, work is easy and reliable, waveforms are complete and free of distortion, the working state and the service life expectation of a field breakdown protector are truly reflected, and measured data are more accurate.