Abstract: When the electric antenna in gallery electromagnetic wave prospecting is replaced with a magnetic antenna, the measurement can be proceeded more fast and efficiently. Through practic measurement, the magnetic antenna shows the same radiating strength as that of the T-shaped antenna used. The results of two-gallery synchronic and singlegallery reflecting measurements can display obvious anomalies when anomalous objects exist. The measurements demonstrate that it is possible to make use of a magne tic antenna as a radiating antenna.