The utility model provides an ultrasonic wave partial discharge detection insulator spindle device, includes the body of rod, the flourishing module of signal and the fixed module of sensor, the body of rod and signal amplification module between through screw fixed connection, fixed module and signal amplification module through semifixed screw fixed connection, the inside coaxial cable that is equipped with of the body of rod, body of rod tail end is arrived through coaxial cable to the output of signal amplification module, and body of rod tail end is equipped with the signal output interface. A convenience and security that ultrasonic wave partial discharge detection insulator spindle device, internal integration ultrasonic signal amplifier circuit effectively shields the external interference, and the body of rod itself adopts insulating material, safe and reliable, device compact structure, convenient to use is swift, and the problem is detected in effectual high altitude of having solved the on -the -spot GIS ultrasonic signal of transformer substation, has improved the testing personnel operation.