Testing method suitable for GIS equipment partial discharge detection

The invention relates to a testing method suitable for GIS equipment partial discharge detection. The testing method combining a pulse current method, an ultrahigh frequency method and an ultrasonic method to detect can improve the reliability and the accuracy of measurement on partial discharge inside GIS equipment, an appropriate detecting method can be selected according to comprehensive analysis and judgment, the working efficiency for detecting partial discharge inside the GIS equipment in field is greatly improved, defects existing inside the GIS equipment are processed in time and are prevented from accumulating and developing, and important guarantee is provided for safe and reliable operation of the GIS equipment.