The invention relates to a method for introducing high voltage into an anechoic chamber, comprising firstly determining dimension of the anechoic chamber and high voltage introducing mode according to the voltage stage, subsequently designing high voltage introduction connection interface to ensure performance of the anechoic chamber and safety of the high voltage introduction. The invention is asafe and reliable, simple and practical method for introducing high voltage into an anechoic chamber. Introducing high voltage by method, ideal environment for conducting power transmission engineering radio interference research is obtained.