Antenna testing method and system

The invention provides an antenna testing method and system. The antenna testing method comprises the following steps: establishing a position parameter of at least one noise element in a device to be tested based on a two-dimensional coordinate system; a radiation signal from the device to be measured is measured to generate three-dimensional gain information, and the three-dimensional gain information comprises a plurality of three-dimensional coordinate parameters; converting the plurality of three-dimensional coordinate parameters into a plurality of two-dimensional coordinate parameters and a plurality of gain parameters under a two-dimensional coordinate system, wherein the plurality of two-dimensional coordinate parameters correspond to the plurality of gain parameters respectively; generating a gain change diagram according to the plurality of two-dimensional coordinate parameters and the plurality of gain parameters; matching the position parameter with the gain change diagram to obtain a noise inter